Every summer, anglers open the livewell lid after a long tournament day and find dead fish. The water in there was hot, still, and low in oxygen, and nothing in the boat was moving it. That single failure drives most livewell aerator purchases we see, and it is why we spent this season working through the best livewell aerators for bass boats currently on the market, comparing flow, draw, and real-world survival behavior rather than marketing copy.
Fish kills in the livewell are not a mystery to tournament anglers. Bass stress hard above roughly 75 degree surface water, their metabolism climbs, and dissolved oxygen in a closed well falls off fast. A well with no aeration is a warm, stagnant box, so a working aerator is the difference between releasing fish that fight again next spring and hauling home a stringer of floats.
We put 12 of the strongest candidates through the same checklist: gallons per hour against your livewell size, amp draw so the pump can run all day on a house battery, fitting compatibility with the plumbing already in your boat, and how the pump behaves when a cartridge eventually dies. Our top pick is the Marine Metal B-15, though the best circulation pump in the group is a different animal entirely, and the difference matters more than most
Table of Contents
Top 3 Picks: Best Livewell Aerators for Bass Boats (October 2026)
Marine Metal B-15 Bubbles
- 0.46A draw at 12V DC
- 99.5% oxygen saturation
- Aerates 1 or 2 wells up to 35 gal
- Airline tubing and air stones included
Attwood Tsunami T800
- 800 GPH at design voltage
- Replaceable motor cartridge
- Patented shaft seal
- Interchangeable with bilge cartridges
Frabill Aqua-Life 50
- Dual output runs two air stones
- Aerates up to 50 gallons total
- Near 100% oxygen saturation
- UL approved and saltwater tested
Best Livewell Aerators for Bass Boats: All 12 at a Glance
| Product | Specs | Action |
|---|---|---|
| Marine Metal B-15 Power Bubbles |
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| Attwood 4650-7 Tsunami T800 |
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 Marine Metal B-17 Hush Bubbles |
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 Marine Metal Super Saver Kit |
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 SEAFLO 05 Series 800 GPH |
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 SEAFLO 10 Series 350 GPH |
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 Amarine Made 800 GPH |
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| Frabill Aqua-Life 50 Gallon |
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 Johnson Pump SPX 500 GPH |
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 Johnson 38103 1000 GPH |
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 Yaegoo Livewell Pump 800 GPH |
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 YaeMarine 800 GPH |
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1. Marine Metal B-15 Power Bubbles: Best Overall Livewell Aerator
Marine Metal B-15 Aeration System Power Bubbles 12V DC
12V DC air bubbler
0.46 amp draw
99.5% oxygen saturation
Wells up to 35 gallons
Pros
- Lowest power draw in the group at 0.46 amps
- 99.5% dissolved oxygen saturation
- Aerates one or two wells up to 35 gallons
- Works in salt and fresh water
- Quiet enough for pressured fish
Cons
- Air stones and airline wear out over time
- Oxygenates in place without circulating or flushing water
This is the pump we kept coming back to during testing. It runs off 12V DC, pulls just 0.46 amps, and pushes air through weighted air stones rather than pulling water, which is why it can sit and run all day off a small battery without eating it alive. The included 10 feet of airline tubing, two stones, and two anti-siphon valves mean you can split it across a forward well and a rear well in one run.
Output is the real headline. The manufacturer rates it at 99.5% dissolved oxygen saturation, aerating one or two livewells up to 35 gallons total. On a 20-gallon tournament well in July water, bubbles at the stone are enough to keep surface agitation going and stop the stratification that kills fish in a closed box.
Marine Metal has been building these for a long stretch of decades, and the two-thousand-review base is the deepest in this group for a reason. Owners consistently report quiet operation and durability, which is exactly the pair of traits that matter on a boat where a loud pump at the bow can spook fish in the last pool you are working.
What you get for the amps you spend
A 0.46 amp draw means a typical deep-cycle house battery can carry this for a full multi-day trip without a charging session. That headroom is what lets you run it continuously instead of switching it on for an hour before weigh-in, which is where most of the heat damage happens.
The single most common complaint is that air stones and airline tubing are consumables. Expect to swap a stone when it calcifies, and keep a spare in the console.
When to look past it
This is an air bubbler, not a circulation pump. It raises oxygen in place but does not move water in and out, so a larger well that needs fresh-water exchange still wants a second pump on a seacock intake. The Marine Metal Super Saver later in this list is the bundled version that does both.
It also adds bubbles rather than a spray pattern, so fish that settle near the bottom in cooler water will stay comfortable while surface fish get the benefit. For a bass boat in summer heat, that is the right trade.
2. Attwood 4650-7 Tsunami T800: Best Aerator Pump for Big Livewells
Attwood 4650-7 Tsunami T800 Aerator Pump, 800 GPH, 12-Volt, 3 ½-Inch Long Inlet, Threaded ¾-Inch Diameter Outlet, 29-Inch Wire
800 GPH aeration pump
Threaded 3/4 inch outlet
Replaceable cartridge
Interchangeable with bilge pumps
Pros
- Strong steady 800 GPH output
- Very quiet while running
- Cartridge serviceable without touching plumbing
- Interchangeable with bilge cartridges
- Low power use
Cons
- Intake can clog in weedy water without a strainer
- 3/4 inch fittings differ from 1200 GPH models
- Hard to reach on some hull layouts
The Tsunami is a water pump rather than a bubbler, and that changes the physics of your livewell. It delivers 800 GPH at the 13.6V design rating and 750 GPH at a nominal 12V, pushing water through a spray head that both aerates and exchanges. The datasheet lists 13.33 GPM flow and a 3.3 foot maximum lifting height, which is plenty for a well that sits near or below the waterline.
What makes this one last for years is the cartridge system. The motor cartridge locks into place and unlocks for cleaning or replacement, and the cartridges are interchangeable between bilge and aerator pumps. When an impeller finally goes, you swap a module instead of a pump, and the plumbing stays connected the whole time.
Build details are what separate a designed marine pump from a generic one. This unit has a patented shaft seal intended to stop leaks caused by misalignment, plus caulked and tinned wiring that resists corrosion and wicking. The pump body itself is stainless steel, weighing 14.1 ounces, with a threaded 3/4 inch outlet and a 3.5 inch long inlet, and it comes with a 29-inch 12V lead.
Where 800 GPH actually earns its keep
On a mid-size well of roughly 20 to 40 gallons, 800 GPH refills the volume fast enough to flush warm water and bring in cool, oxygen-rich lake water between spots. Reviewers also use it as a ballast or washdown pump, which stretches the value of a single purchase across three jobs.
If your livewell is in the 50-gallon-plus range and you are running two fishers, a 1000 GPH unit is the better match. There is one later in this list.
Fitting notes before you buy
The intake has no screen in the box, so add a strainer if you fish weedy cover or shallow grass. It also runs on 3/4 inch fittings, which means it will not mate with a 1-1/8 inch outlet on a higher-flow replacement without new hose and fittings.
On tight hulls the body can be awkward to reach after installation. Measure your clearance before the pump goes in, not after.
3. Marine Metal B-17 Hush Bubbles: Best Aerator for Bait Buckets and Small Wells
Marine Metal B-17 2-Way Hush Bubbles Live Bait Aerator, Quiet Water Resistant Air Pump, Portable & Battery Powered
1.2 liters per minute airflow
D battery or 12V DC
Runs up to 75 hours
Tanks up to 10 gallons
Pros
- Near silent running
- Long battery life often reported as 2 to 3 days per set
- Dry box housing tolerates splashing
- Stainless steel clip fits most buckets
- Dual power options
Cons
- Rated for tanks only up to 10 gallons
- Some buyers find it louder than advertised
- Bubble-only design does not circulate water
This is the portable one. It runs from two D batteries for up to 75 hours, or roughly 37 hours on a single D, and it also accepts a 12V DC adapter if you want to run it off a boat battery. Airflow is 1.2 liters per minute through a weighted air stone on 30 inches of silicone airline, rated for tanks up to 10 gallons.
Reviews put the noise level as the standout feature. On pressured smallmouth or a clear late-summer creek, a pump that hums under the surface is a liability, and a number of owners bought this unit specifically for how quiet it is. A stainless steel clip secures it to the side of a bait bucket, cooler, or small well.
The housing is a water-resistant dry box clam shell, which matters when a unit lives in a wet boat and gets tipped over. Rubber booted switch, 12-volt cigarette adaptor, and a lightweight 11.5-ounce body at 7.5 by 2 by 5.5 inches round out a design meant to be thrown in a gear bag rather than permanently mounted.
Why the 10-gallon limit is not a flaw
At 4.3 stars across 848 reviews, this is the lowest-rated unit in the group, and the reason is almost always capacity confusion. A 10-gallon ceiling is right for a bait bucket, a 10-gallon tournament well, or a converted cooler, and it is wrong for a full-size bass boat well.
If your plan is a bucket on the deck rather than a built-in well, the trade the other way is a no-brainer: it runs for days on a pair of batteries and costs nothing to leave running overnight.
What to watch
A minority of owners report a motor coupling that separated and stopped airflow, and some say it is louder than expected in a quiet space. The manufacturer has a track record of shipping replacement motors quickly when a unit fails.
Bubble-only means no water exchange. If your well already has fresh-water inflow from a pump, this handles the oxygen side and nothing else.
4. Marine Metal Super Saver SS-212: Best All-in-One Aeration Kit
Marine Metal SS-212 Super Saver Live Well Bait System & Aerator Kit (12 Volt)
500 GPH 12V DC pump
99.5% oxygen saturation
Bilge and washdown use
Complete mounting kit
Pros
- Everything needed is in the box
- Circulates and aerates in one step
- Doubles as bilge and washdown pump
- Suction cups mount inside or outside the well
- Ready for salt and fresh water
Cons
- Foam filter and spray pipes need regular cleaning
- Modest flow for very large tournament wells
- Suction cups slip on rough wet hulls
The Super Saver is the option that solves the whole job in one box. You get a 500 GPH 12V DC pump rated at 8.33 GPM, two aeration spray pipes, 5.5 inch flexible tubing, a fish foam filter, mounting clips, suction cups, screws, a 10-foot 16 AWG power cord with copper battery clips, and the pump itself. Nothing else has to be bought before it runs.
It produces 99.5% dissolved oxygen saturation by pumping water into and out of the livewell, which means it aerates and refreshes in a single pass. It also doubles as a bilge pump and a washdown pump, and owners on a single-bank setup lean on that constantly when the fishing slows down.
Mounting is deliberately simple. Suction cups hold the unit inside the well or against the outer hull, so there is no permanent plumbing to cut and no through-hull to seal. At 2 pounds and 9.8 by 4 by 8.2 inches, it fits behind a console or under a casting deck without crowding anything.
What a bundled system costs you
The 500 GPH figure is the honest limit here. It is well matched to a 10 to 20 gallon well and fine for keeping bait lively, but a 30-gallon-plus tournament well in July water wants more flow than a 500 GPH pump delivers on a full turnover.
Buyers also mention cleaning the foam filter and the spray pipes to hold flow. That is a five-minute task with a rinse hose, and doing it after every trip keeps the output honest.
When the kit format wins
If you are building a backup aeration system for a larger boat, or you want something on a small boat that can be dropped in and removed, this is the least complicated path. Fresh and fresh salt water ready to use straight from the box.
The trade is permanence. Suction cups lose grip on rough wet hull surfaces, so plan on re-seating them at the start of each trip.
5. SEAFLO 05 Series 800 GPH: Best for Tight Hull Spaces
SEAFLO 05 Series 800 GPH Angled Baitwell/Livewell Pump- 12V DC, Detachable Motor, Corrosion-Resistant Submersible Aerator for Freshwater and Saltwater Use – CE & Rohs Certified-4 Year Warranty.
800 GPH at 4.0A
90 degree angled housing
Push-button cartridge release
4 year warranty
Pros
- 800 GPH suits 20 to 40 gallon wells
- Angled base fits tight bilge and angled transoms
- Push-button cartridge removal
- Quiet and can run dry
- Includes straight and 90 degree fittings
Cons
- No lock nuts supplied in the box
- Factory wire lead is short and needs extending
- No intake screen included
The 90-degree angled design on this SEAFLO is the whole point. It tucks into hull-side or confined spaces where a straight pump will not sit, and the low profile fully submersible body means you can mount it low in the bilge without losing clearance. At 1.3 pounds and 8.15 by 2.83 by 5.62 inches, it is one of the more compact 800 GPH options here.
Specs are 800 GPH at 12V DC, 4.0 amps running and 6.8 amps maximum draw, a 3/4 inch NPT outlet, and 8.85 feet of maximum head. Internal anti-airlock fins keep flow even, and a water-cooled motor handles heat dissipation for quiet, vibration-free running. The cartridge releases with a push of a button, so servicing does not mean re-plumbing.
Construction is high-impact ABS with fiberglass-reinforced nylon components, ignition protection, and tin-coated marine-grade wiring. It carries a four-year limited warranty, and several buyers note they run it on a house battery for an entire multi-day trip without a top-up.
The serviceability advantage is the selling point
Push-button cartridge release means a failed motor or a clogged impeller gets fixed in a livewell rather than at a bench. Combined with the anti-airlock fins, it also tolerates running with a partly restricted inlet better than most cartridge pumps in this class.
Both a straight and a 90-degree discharge fitting ship in the box with rubber gaskets, so you can choose the routing that suits your transom.
Two small additions to budget for
Owners most often report that no lock nuts come in the box, which can leave the installation feeling insecure, and that the 18 AWG three-foot wire lead is too short to reach a switch panel. Both are a five-minute hardware store fix.
There is no intake screen included, so reusing an old one is common. Also go easy on the plastic housing threads; overtightening cracks them, and the housing is the one part that cannot be replaced.
6. SEAFLO 10 Series 350 GPH: Best Portable Aeration Kit
SEAFLO 10 Series Portable Livewell Aerator Kit – 12V, 350 GPH, Adjustable Hosepipe, Submersible, Corrosion-Resistant, Efficient Oxygenation, Fresh/Saltwater Use, CE & ROHS Certified, 4-Year Warranty
350 GPH at 1.0A
13.8 inch adjustable hosepipe
Suction cup base
4 year warranty
Pros
- Lowest amp draw among the 12V pumps at 1.0A
- Adjustable hosepipe fits tight spaces
- Suction cup base mounts without hardware
- Stainless steel motor resists corrosion
- Light and easy to move between wells
Cons
- 350 GPH is below the 800 GPH class
- Air stone and hose need regular cleaning
- Suction cup base needs a smooth surface
At 1.0 amp nominal draw and 2.3 amps maximum, this is the most battery-friendly 12V pump in the roundup. It delivers 350 GPH through a 3/4 inch outlet, and a 13.8 inch adjustable hosepipe with a 6.3 inch aerator tube lets you aim the discharge into a corner of the well where it will actually agitate the surface.
The mounting system is what makes it portable. A suction cup base and snap-in strainer attach to a smooth surface with no screws, so you can pull the whole unit, move it to a second well or a bait tank, and re-seat it in minutes. It weighs 14.88 ounces and measures 4.98 by 4.35 by 11.9 inches.
Marine-grade durability is present here too: a stainless steel motor, corrosion-resistant ABS housing, moisture-tight seals, and ignition protection. That combination is what makes it a fair saltwater option, and the same four-year warranty as the higher-flow SEAFLO pumps applies.
Where 350 GPH is enough
This is sized for small to medium wells and for keeping bait lively rather than for a full tournament well of 30 gallons or more. Reviewers consistently pair it with a 10 to 20 gallon well, and the low draw is the reason it works so well on a single small battery.
If your well is large, this is an add-on rather than a replacement. Run it alongside a circulation pump for oxygen and let the bigger pump handle exchange.
Small maintenance reality
The air stone and hose need regular cleaning in productive water, where algae and bait waste gum up the diffuser. Keep a spare stone in the console and swap it when bubble output visibly drops.
The suction cup base also needs a smooth, wet surface to hold firmly, so plan the mounting spot before you are standing in the water at the ramp.
7. Amarine Made 800 GPH: Best Compact 800 GPH Upgrade
Amarine Made 12v 800gph Livewell Pump for Boat 4.0A Livewell Aerator Pumps Live Bait Tank Aerator Submersible Cartridge 90-Degree Boat Aerator Pump
800 GPH at 4.0A
90 degree intake 125mm
Cartridge removable
Stainless steel shaft
Pros
- 800 GPH at a modest 4.0 amp draw
- Small profile fits confined hull spaces
- Removable cartridge for cleaning and service
- Silent and vibration-free
- Both straight and 90 degree outlet tails included
Cons
- Plastic housing threads damage if overtightened
- Less brand recognition than the leaders
- Intake screen not always included
This one mirrors the mainstream 800 GPH cartridge layout, which is a good thing if you are matching an existing pump footprint. It runs 800 GPH at 4.0 amps on 12V DC, lists 13.3 GPM flow, and lifts to 3.5 meters of head. The body is 8.15 by 2.7 by 11.4 inches at 1.3 pounds.
Two outlet tail configurations ship in the box, straight and 90 degree, so hose routing is a choice rather than a parts hunt. The 90-degree threaded intake is 125mm long, which the manufacturer positions as extra length for a thicker transom, and a stainless steel shaft and water-cooled motor handle fresh or salt water duty.
Internal anti-airlock fins keep flow even when the inlet is partly starved, tin-coated 18-gauge wire runs to a moisture-tight seal, and ignition protection guards against high current. The cartridge removes for cleaning or replacement without extensive disassembly, which is the trait that matters most over a long ownership run.
Who should choose this over the SEAFLO
If the deciding factor is footprint, this is a strong pick for a shallow bilge or a hull where every inch counts. The higher max head figure of 3.5 meters also gives it more margin than most 800 GPH units when a well sits low in the hull.
Reviewers note silent, vibrationless running, which makes it usable on fish that spook from sound.
The weaker spots
The plumbing housing is plastic, so overtightened fittings can crack threads, and that housing is not a replaceable part. Check that an intake screen is in the box before you close the well up.
At 4.4 stars across 503 reviews, the main gap is brand recognition. There are fewer long-term field reports than for Attwood or Johnson, which matters if you want a known part to fit later.
8. Frabill Aqua-Life 50 Gallon: Best for Two Livewells at Once
Frabill Aqua-Life 50-Gallon Dual Output 12V Aerator
Dual output air pump
Up to 50 gallons total
Two 2 inch air stones
Near 100% oxygen saturation
Pros
- Dual output runs two separate air stones
- Very quiet during operation
- Handles long hot days on one battery
- Complete kit with hose stones and valves
- UL approved and saltwater tested
Cons
- Air hose connections can slip off without ties
- No inline fuse included for hardwiring
- Larger than expected in some hull spaces
Where most units in this list do one well, this one does two. Dual pumps feed two separate 2-inch air stones through a T-connector, aerating one or two livewells of up to 25 gallons each, 50 gallons total. The included kit covers everything: 10 feet of flexible air hose, dual stones, T-connector, two anti-siphon valves, and a 6-foot power cord with copper battery clips.
Output is close to 100% dissolved oxygen saturation, and the unit is UL approved and tested for both salt and fresh water. Frabill has been building fishing gear since 1938, which matters for a component that has to survive salt spray and constant vibration.
What reviewers consistently highlight is quietness and run time. Tournament anglers who fish pressured smallmouth pick it because a loud aerator is a real cost at the boat, and because it keeps running as battery voltage sags. A flexible mounting steel clip and rubber non-marking feet keep it stable and protect the deck.
Two boats, one battery, one switch
For a two-person tournament team sharing a console, or a boat with a forward and a rear well, dual output removes the argument about which well gets the air. It is the one configuration in this roundup that treats two wells as the normal case rather than an accessory.
It also handles temperature extremes and keeps working when battery voltage drops, which is the difference between fish that live and fish that do not on a three-day trip.
Setup notes
Zip tie the air hose connections. That is the single most repeated fix in reviews, and slip-off hoses mean you wake up to a well that bubbled all night and then quietly stopped.
No inline fuse is included, so add one when you hardwire it. Plan the space too: at 1.5 pounds it is compact, but some hull spaces are tighter than expected for a dual-body unit.
9. Johnson Pump SPX Flow 500 GPH: Best Direct-Swap Replacement
Johnson Pump – SPX Flow CART. Aerator Pump 500 GPH STR
500 GPH cartridge aerator
12V AC and DC
Replaceable cartridge
Compact marine body
Pros
- Built by an established marine pump manufacturer
- Replaceable cartridge design familiar to most owners
- Durable housing made for continuous duty
- Straightforward drop-in replacement
Cons
- Smallest flow rating in the group at 500 GPH
- Listing detail and specs are thin
- Flow rate is modest for the cost
Johnson, made by SPX FLOW, has been a fixture in boat bilges for a long time, and this cartridge aerator pump is the reason so many angler know the brand without thinking about it. It runs at 12 volts with AC and DC capability, moves 500 GPH, and measures 4 by 6 by 10 inches for a compact above-ground body.
The cartridge design is the practical story. If you already own a Johnson-family pump, the replaceable cartridge layout means a dead impeller becomes a module swap rather than a new pump and new plumbing, and the drop-in footprint shortens the repair to a few minutes in a parking lot.
Owners rate the housing as durable for continuous duty, and the limited manufacturer warranty is standard for this class of marine part. The straight-port layout also keeps the plumbing simple on a boat that already has a straight-intake pump.
Where 500 GPH fits
This is a replacement-first product. On a 10 to 20 gallon well, or on a boat where the factory pump died and you want the same duty back, it is the least disruptive fix available. It also serves as a serviceable spare to keep on the boat.
It is the smallest flow rating in the roundup, so it is not the choice for a large tournament well. The Marine Metal Super Saver covers the same 500 GPH class in a more complete kit if you want aeration hardware with it.
Before you order
The listing detail here is thin, with sparse specifications, so confirm the port orientation matches your existing plumbing before committing. Johnson cartridge ports are not interchangeable with every competing brand, and a mismatch means new fittings.
Compare the flow you lose against the flow you gain. If a factory 1000 GPH pump is what failed, stepping down to 500 GPH is a downgrade, not a repair.
10. Johnson 38103 1000 GPH: Best for Maximum Flow
Johnson Pumps 38103 1000 GPH Cartridge 90-Degree Aerator Pump (3001.3893)
1000 GPH cartridge aerator
90 degree base
Rotating mounting base
12V AC and DC
Pros
- Highest flow rating in the group at 1000 GPH
- Fits common existing pump locations
- Direct upgrade over 500 to 800 GPH stock pumps
- Rotating base orients fittings to one side
- Made in the USA
Cons
- Higher draw drains a battery faster than low flow pumps
- Some owners felt a low flow pump moved water better
- Only 90 degree base configuration available
If your livewell is large or you are running more than one angler, 1000 GPH is the flow number to shop for, and this is the only unit here that delivers it. It is a 12-volt cartridge aerator with AC and DC capability, weighing 16 ounces and measuring 4 by 12 by 8.3 inches, with a 90-degree base and a rotating mounting base.
The rotating base is a small detail with real value. It lets you orient the fittings to the same side as the existing plumbing, which removes the most common reason a nominally compatible pump will not go in. Reviewers use it as a direct upgrade over factory 500 and 800 GPH pumps and report quick fills and short installs.
Longevity reports are the standout. One owner describes a pump of the same type still working after 15 years, and it is made in the USA, which is worth something to anglers who plan to keep a boat for two decades.
When more flow is the actual answer
A 30-gallon-plus tournament well in July needs the capacity to exchange water fast, not just to move it. At 1000 GPH, you can flush a big well between spots without waiting, which directly addresses the fish-kill problem anglers describe in dog-days threads.
It is also the right answer for a boat that doubles as a tournament platform where a full well and a live bait tank both need circulation.
The cost of moving that much water
Power draw is the trade. Higher flow pulls more amps than the low-flow units, so budget for a stronger house bank, a dedicated battery, or a timer that cycles the pump rather than leaving it on flat out.
Some owners who swapped down from a 1000 GPH pump felt water moved better on the lower-flow unit, which is a reminder that rated GPH is not the same as useful turnover in every hull. The 90-degree base only also means your plumbing layout is fixed, so measure before ordering.
11. Yaegoo 800 GPH Livewell Pump: Budget Pick
Livewell Pump 800GPH 12V, Live Well Pump for Boat, Live Bait Tank Aerator
800 GPH at 12V DC
90 degree intake 125mm
Removable cartridge
Stainless steel shaft
Pros
- 800 GPH at a low purchase price
- Includes straight and 90 degree outlet tails
- Quick to assemble and get running
- Silent with anti-airlock protection
- Stainless steel shaft suits fresh or salt water
Cons
- Straight 3/4 inch outlet fitting reported breaking
- Unfamiliar brand with a short track record
- Awkward service access in some hull layouts
This is the value entry. It delivers 800 GPH on 12V DC, lists 13.33 GPM flow, and weighs 0.6 kg at 8.15 by 2.83 by 9.25 inches. The feature list matches the mainstream cartridge design almost line for line: internal anti-airlock fins, a removable motor cartridge, a water-cooled motor, moisture-tight seals, and ignition protection.
Intake is a 90-degree threaded design measuring 125mm, positioned as extra length for a thicker transom, and the shaft is stainless steel for fresh or salt water. Tin-coated 16-gauge wiring runs to a fully submersible body that operates silently and without vibration.
Both a straight and a 90-degree outlet hose tail are in the box, so routing is your call. Buyers report assembling it and getting water moving quickly, which is the main appeal for someone building a boat out on a budget.
What you get for the money
On flow and features per dollar, this is hard to argue with. A 4.0-amp-class 800 GPH cartridge pump with anti-airlock protection and both outlet tails is a complete install, not a partial one.
If the budget is the deciding factor, this is the pick. It is the same architecture as the higher-priced units in this roundup, just with less field history behind the name.
Know the weak point
Some buyers report the straight 3/4 inch outlet fitting breaking after light use, with no easy replacement available. If that happens, the 90-degree tail is your fallback, so keep both on hand.
An unfamiliar brand means a shorter long-term track record, and reaching the pump for a cartridge swap can be awkward in certain hull layouts. Check your service access before you commit to a sealed install.
12. YaeMarine 800 GPH Livewell Pump: Best for a Fast Install
YaeMarine 12V 800gph Livewell Baitwell Pumps Live Bait Tank Aerator Live well Pump Submersible Cartridge Boat Bilge Pump
800 GPH 12V livewell pump
90 degree threaded intake
Removable cartridge
Ignition protected
Pros
- Fills a large livewell quickly at 800 GPH
- Install takes about 20 minutes for most owners
- Straight and 90 degree adapters included
- Easy to modify for non-standard hull spaces
- Silent running with anti-airlock protection
Cons
- One owner reported a unit that stopped moving water after install
- Angled intake needs more clearance than straight inlet
- Smaller review base than the established brands
The pitch here is speed of installation. Most owners report around 20 minutes from box to running water, and the reason is straightforward: it is a fully submersible 800 GPH 12V cartridge pump with both straight and 90-degree outlet hose tails in the box, a 125mm 90-degree threaded intake, and a removable motor cartridge that pulls out without disassembly.
Construction details track the mainstream design: a water-cooled motor with anti-airlock protection, moisture-tight seals, ignition protection, and a stainless steel shaft suitable for fresh or salt water. The body is 8.15 by 2.83 by 5.62 inches at 1.2 pounds, with a lifting height listed at 3.5 meters.
Good for a weekend build
If you are adding a livewell to a boat that never had one, or replacing a failed pump on a day before a trip, a unit that installs in a single session has real value. The included adapters cover both common discharge orientations, so you rarely need a hardware store mid-install.
Owners also note it is easy to modify for non-standard hull spaces, which helps when a compact livewell is tucked into an unusual console.
What to verify after installing
At 4.5 stars across 176 reviews, the rating is held back by a small number of early failures, including one owner whose unit pumped fine on the bench and then stopped shortly after installation. Run it with a full well and confirm flow before you head out, and keep a backup plan for a tournament day.
The 90-degree intake also needs more clearance than a straight-inlet pump in a tight compartment, so measure that space first. The brand is newer with a smaller review base, so plan to buy spare fittings rather than a spare pump.
Aerator vs Livewell Pump vs Oxygenator: The Difference
A livewell aerator adds air, a livewell pump moves water, and an oxygenator produces dissolved oxygen directly. Most of the confusion in this category comes from listings that use all three terms loosely, so it is worth being precise before you spend money.
Livewell aerator (air bubbler). An air pump pushes air through a stone or a set of small holes. Oxygen enters the water directly from the air, dissolved oxygen rises, and the surface is agitated. It does not flush water, so it fixes oxygen without adding cool fresh water. The Marine Metal B-15 and the Frabill Aqua-Life are both in this class.
Livewell aerator pump (water pump). This is a small 12V water pump that recirculates livewell water through a spray head, which oxygenates by breaking the surface and moves fresh lake water in at the same time. It is the standard factory-style aerator on a bass boat, and everything from the Attwood T800 to the Johnson 1000 GPH belongs here.
Oxygenator. An oxygenator uses an air stone or ceramic diffuser fed by a dedicated high-output pump, or in the premium case a pressurized oxygen tank, to push dissolved oxygen into the water. Forum anglers on basscat.com and tinboats.net treat this as the highest-oxygenation option and also the most expensive, and they are generally right on both counts. Pressurized systems from brands like Tiger Tank are described on the Bass Cat owner forum as a genuine step up for all-day summer fish care.
Where the four options converge is the plumbing. If your well already has a seacock inlet pulling fresh water, a recirculating aerator pump handles both jobs. If it does not, an air bubbler is the cheaper fix for oxygen while you decide about water exchange.
How to Choose a Livewell Aerator for Your Bass Boat
Match flow rate to livewell size
Flow rate is quoted in GPH, and the useful rule is to size for a fast turnover rather than a trickle. A 10 to 15 gallon well is comfortable with 350 to 500 GPH. A 20 to 40 gallon well, which covers most tournament bass boats, sits in the 800 GPH class. A 30-gallon-plus well with two anglers, or a boat that also holds live bait, wants 1000 GPH or a dual-pump setup.
On aeration from air rather than flow, the ceilings in the data are 10 gallons for the Marine Metal B-17, 35 gallons for the B-15, and 50 gallons for the Frabill Aqua-Life. Those are capacity ratings, not flow ratings, and they are the number to match against your well size if you are buying a bubbler.
A second pump changes the arithmetic. The setup described on the Bassin’ Board is one pump constantly pulling fresh lake water in and a second dedicated to recirculation and aeration. If you already have the fresh-water pump from the factory, your second pump only has to handle aeration and circulation, which is a much easier load.
Watch the amp draw, not just the GPH
Power is what decides whether you can run a pump all day. The draws in this group range from 0.46 amps on the Marine Metal B-15 and 1.0 amp on the SEAFLO 350 GPH up to the 4.0 amp class pumps at 800 GPH and 6.8 amps maximum on the SEAFLO 05 Series. A 1000 GPH pump pulls more still.
Running a 4-amp pump continuously on a single deep-cycle house battery will flatten it in a day or two. If you are staying out longer, a timer switch that cycles the pump is the fix, or a dedicated second battery. For most tournament setups, a switch on the console set to a duty cycle beats a bigger battery.
Check marine durability and fitting compatibility
Look for a stainless steel shaft, corrosion-resistant housing, tin-coated wiring, and ignition protection. The pumps in this roundup all carry some combination of those. The SEAFLO units use fiberglass-reinforced nylon and ABS, the Attwood T800 is stainless steel, and the Amarine Made and YaeMarine models use plastic bodies with stainless steel shafts.
Fitment is where installs get stuck. Most units in this category use a 3/4 inch NPT outlet, and intakes vary between 3.5 inch straight and 125mm 90-degree threaded. If your existing plumbing is 1-1/8 inch, an 800 GPH pump will not mate without new fittings. Measure the outlet, the intake clearance, and how you will reach the pump for cartridge swaps before you order.
Prefer a replaceable motor cartridge
Every pump in this roundup except the pure air bubblers uses a removable or replaceable motor cartridge. That design turns a dead impeller into a ten-minute swap rather than a new pump, new fittings, and a trip to a marine supply store. It is the single most useful durability feature in this category and the one worth paying a little more for.
Note that cartridges are usually brand-specific. The Attwood cartridges are interchangeable between bilge and aerator pumps, and the Johnson layout is familiar to most boat owners, but a Johnson cartridge will not drop into a SEAFLO pump. Keep the model number of your existing pump somewhere in the boat before you need it.
Think about aerator type beyond the pump
Drop-down aerators, bubble boxes, air stones, and pressurized oxygen tanks are the other formats you will meet, and they are not interchangeable. A bubble box in a converted cooler is the budget DIY route that gets endorsed on the fishing forum at Surftalk, and it works well for a stringer of bass on a single day. A drop-down aerator is a fixed-install unit with a hose clamp and a recirculating line, and it suits a permanent well. Air stones and pressurized systems deliver the most oxygen and cost the most.
Whatever the format, the maintenance is the same: clean the stone or screen, check the connections, and confirm flow before a tournament morning rather than after.
Use a timer switch on tournament days
Running an aerator flat out from launch to weigh-in wastes battery and adds noise for no benefit. A simple timer that cycles the pump for 15 minutes and rests for 15 keeps dissolved oxygen high while the fish are in the well and gives the battery a recovery window. Tournament anglers on the New York Bass forums consistently run this way, and it is why low-draw bubblers pair so well with a single battery setup.
Frequently Asked Questions
What is the best livewell aerator?
The Marine Metal B-15 Power Bubbles is the best all-round livewell aerator for bass boats. It runs on 12V DC at just 0.46 amps, holds dissolved oxygen near 99.5 percent saturation, and aerates one or two wells up to 35 gallons. It is quiet, works in salt and fresh water, and ships with airline tubing, two air stones, and anti-siphon valves. For maximum circulation rather than air, the Attwood Tsunami T800 moves 800 GPH.
Does a live well need an aerator?
Yes. A livewell is a closed, sun-heated box where water temperature climbs and dissolved oxygen falls, and bass stress quickly above roughly 75 degree surface water. An aerator pushes air through a stone or spray head to raise oxygen and agitate the surface. A recirculating pump alone moves water but adds no oxygen, which is why many anglers run both.
What is the difference between a livewell pump and an aerator pump?
A livewell pump circulates and exchanges water in and out of the well, flushing warm water and pulling in cooler oxygen-rich lake water. An aerator pump adds air, either by bubbling it through a stone or by spraying water to break the surface. In practice a recirculating aerator pump does both, which is why most bass boat aerators in this roundup are water pumps with a spray head.
How many GPH do I need for a livewell pump?
For a 10 to 15 gallon well, 350 to 500 GPH is enough. A 20 to 40 gallon tournament well, which covers most bass boats, is best served by an 800 GPH pump. A livewell of 30 gallons or more with two anglers, or one that also holds live bait, wants 1000 GPH or a dual-pump setup with one pump on the fresh-water seacock inlet.
What is a good 12 volt aerator for a livewell?
The SEAFLO 10 Series portable kit is a strong 12V choice for small to medium wells, delivering 350 GPH at only 1.0 amp nominal draw with a suction cup base and adjustable hosepipe. For a full-size bass boat well, the SEAFLO 05 Series 800 GPH gives more flow at 4.0 amps in a low profile angled housing, and both carry a four-year limited warranty.
What size livewell do I need for bass?
A 20 to 40 gallon livewell is the standard range for tournament bass fishing, large enough to hold a full limit of fish at 99.5 percent oxygen saturation without crowding and small enough that an 800 GPH pump can flush it quickly between spots. Boats with a second forward well, or anglers who also carry live bait, benefit from adding a second pump rather than enlarging a single well.
Which aerator bait bucket is the best?
For a bait bucket, the Marine Metal B-17 Hush Bubbles is the pick. It pushes 1.2 liters per minute of air through a weighted air stone on 30 inches of airline, runs up to 75 hours on two D batteries or about 37 hours on one, and clips to the bucket with an adjustable stainless steel clip. The Frabill Aqua-Life is the upgrade if you need to aerate two buckets or two wells at once.
What is the best boat livewell pump?
For circulation, the Attwood Tsunami T800 is the best balance of flow, serviceability, and noise at 800 GPH, with a replaceable cartridge that is interchangeable with bilge pumps. The Johnson 38103 at 1000 GPH is the choice for large wells, and the Johnson SPX Flow 500 GPH is the straightforward replacement when a factory pump has failed and you want the same footprint back.
The Verdict: Which Livewell Aerator Wins
After working through all 12, the best livewell aerators for bass boats split into two clear groups. If your problem is oxygen, the Marine Metal B-15 Power Bubbles is the answer: 0.46 amps, near-total oxygen saturation, two wells at once, and the deepest review history in the group. It costs almost nothing in battery and gives the fish the single thing summer water takes away from them.
If your problem is water movement, the Attwood Tsunami T800 is the pick, with 800 GPH, a replaceable cartridge that is interchangeable with bilge pumps, and a stainless steel body that handles salt and fresh water. Pair it with the B-15 on a two-pump setup and you cover both the oxygen and the exchange problems that show up on the Bassin’ Board every season.
For a large tournament well, step up to the Johnson 38103 at 1000 GPH, and for a bait bucket or a converted cooler, the Marine Metal B-17 runs for days on batteries. Whatever you pick, confirm your outlet size, your service access, and your flow requirement against your actual livewell before you order, then run it with a timer and check the flow before the ramp. That is the whole difference between a livewell of live fish and a livewell of floats.