Aquael Pat Mini Internal Fish Tank Filter – Aquarium Sponge Filter System – Small Aquarium Water Filter Pump 2-31 Gallons

$22.99

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Price: $22.99
(as of Oct 21, 2025 12:22:35 UTC – Details)

From the brand

Mission

Every day, we work with our partners to become a top innovator in the field of zoology. We’re passionate about developing technology that helps animals, inspires their caretakers, and brings joy through a closer connection to nature.

39 Years In The Industry

For over 39 years now, AQUAEL has been manufacturing everything required for setting up and maintaining fresh or saltwater aquariums.

External Aquarium Filter

External Aquarium Filter

External Aquarium Filter

Internal Aquarium Filter

Internal Aquarium Filter

Internal Aquarium Filter

Hang-On-Back Aquarium Filter

Aquarium Circulator Pumps

Aquarium Heater

Indestructible Aquarium Heater

Aquarium Light

Freshwater Planted Tank Light

Saltwater Aquarium Light

Reef Aquarium Light

Aquarium Accessories

Aquael Filter Media

Package Dimensions ‏ : ‎ 8.62 x 3.31 x 2.83 inches; 11.29 ounces
Item model number ‏ : ‎ 120623
Date First Available ‏ : ‎ October 19, 2021
Manufacturer ‏ : ‎ Aquael
ASIN ‏ : ‎ B09JVRK64D
Best Sellers Rank: #86,711 in Pet Supplies (See Top 100 in Pet Supplies) #377 in Aquarium Filters
Customer Reviews: 4.1 4.1 out of 5 stars 92 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });

Versatile Aquatic Filtration: The Aquael Pat Min is engineered for both fresh and saltwater aquariums, ensuring versatile and efficient aquatic filtration to maintain a healthy environment for your fish.
Whisper-Quiet Operation: Experience virtually noiseless operation with the ceramic rotor shaft and thoughtfully designed pump rotor and chamber. This makes it suitable for any room, including bedrooms, allowing you to enjoy without disruptive noise.
Compact: Measuring a mere 1.5″ x 2″ x 5.5″ and consuming only 4 watts. Its diminutive size belies its powerful capabilities, providing effective filtration without taking up precious space.
Mighty Performance: The Aquael Pat Mini achieves impressive flows of up to 105 GPH, rivaling the performance of larger turbine aquarium filters. Its compact design packs a punch, delivering efficient filtration for your aquatic ecosystem.
Precise Control and Secure Placement: The Aquael Pat Mini features a flow control valve for precise regulation of water flow. With a universal hanger, it ensures secure attachment within the aquarium, offering both flexibility and stability.

Customers say

Customers find the aquarium filter works well, with one mentioning it’s perfect for a 3-gallon beta fish aquarium, and another noting it’s ideal for African dwarf frogs. Moreover, the size is appropriate for 10-gallon tanks, and customers consider it good value for money. However, opinions about the pores and water flow are mixed.

9 reviews for Aquael Pat Mini Internal Fish Tank Filter – Aquarium Sponge Filter System – Small Aquarium Water Filter Pump 2-31 Gallons

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  1. max

    A small mini sponge filter that works really well
    This is a compact, small sponge filer ideal for shrimp where water current from traditonal filters create to much under current for baby shrimp. This is a really good design for a small tank with shrimp. It has a hang on top plastic hanger with a slide-on gate to the back of the filter. That gate was really awkward to slide in as the instructions were of no help and the slide gate had no ‘up’ marking and it can only go on one way. Took me several tries before I got it to slide on. Once on the flat tank hanger then slides between the gate and filter’s back.I also got the upgrade tube side unit that disperse water along everal inches of tube sections with outlet spouts making the water current very low and dispersed. Has a standard sponge filter and there was also a CarboMax filter separate option which I also got.The only downside seems to be availability. Seems Aquael isn’t offering it on their Amazon website even though there’s a photo of it there. PetSmart only had 1 left in each of 2 stores – both of which I bought up along with the last of their media boxes.Why Aquael isn’t offering them now I don’t know. I think this is an amazingly good mini filter that protects small fry and baby shrimp better than any other filter and its designed for small tanks.Aquael: hope you read this glowing review of your amzing PAT filter and bring this great filter back on line!

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  2. Christopher

    Worth it.
    Works well and not to big.

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  3. Amazon Customer

    UPDATE: Seller fixed the problem. Original: False advertising, sponge not safe for baby shrimp
    UPDATE:The seller went above and beyond and reached out to me to send me the dense sponge. Compared to my experiences with other sellers, I’m honestly surprised at how well they communicated and seem to really care. Since I like to keep backup equipment, I think I might buy from them again if I can be sure to get the dense sponge.Original review:I thought I found the perfect filter for my 7.5 gallon crystal red shrimp tank.. I was wrong. On the Amazon product page, it shows a sponge with fine, tiny pores… and so does the outside of the box. However, when I opened it up, the sponge I got has rather large pores (see attached images). This is fine for adult shrimp, but certainly not safe for tiny baby shrimp. I’m back to the drawing board for this shrimp tank.Otherwise, it functions decently. The only reason I didn’t give one star is because I should be able to use it if I start another tank (just not a shrimp tank).

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  4. Carolina Gonzalez

    loved but malfunctioned after a few days
    I think it’s a great filter only problem was that I received it 09/13/25 set it up on 09/14/25 and put it to the lowest setting but today on 09/18/25 the aeration system went out all of a sudden, I thought maybe I moved it but no matter how I try to adjut it will not go back to the lowest setting and instead is going full force in my tank. I can’t return it unfortunately because I don’t have the original box anymore but the few days it was working, I thought it was perfect.

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  5. Angel Harrison

    Expensive lesson
    At first this thing worked great. My pygmy corys loved playing in the flow and bubbles. I used the tube attachment for extra aeration, but unfortunately after a couple months it backed up and caused my tank to leak overnight. I had several hundred dollars in fish, shrimp, snails and plants 😭 Really bummed out!

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  6. remoteControlledCow

    Effective, not for smaller tanks
    Filter is effective. It’s a simple sponge filter which is easy to maintain and clean. It came with bunch of plastic parts…but the instructions included are useless. Luckily, the video from Aquael that’s part of the product description is very good so it will definitely get you started immediately. I have a smaller 1.8 gallon tank for my betta – so I originally had the filter submerged with lowest setting but it still looked like betta was struggling against it at times, so I moved the filter up out of the water with the water jet deflector pointed upward. I can’t really use the aeration feature that way but the water just drips down off of the filter into the tank which is perfect for my use. This probably isn’t the best filter for my 1.8 gallon tank since it’s larger than others and even the low setting is still pretty strong, but I am going to upgrade to a larger tank anyway and this filter would be perfect for it.

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  7. ActorMike

    Great Shrimp Tank Power Head when dense media is used!
    Works great for my shrimp take but not easy to take apart to clean the impeller and shaft! Made a YT video to help everyone do this!

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  8. eric roy

    Nice pump for the money
    Bought the filter originally from PetSmart but someone took the whole filter assembly out and put a basic foam filter base in its place lol. I returned it and ordered off Amazon. Unit came in good shape through it together and it’s been running for about 3 months. It finally slowed down on flow to where it wasn’t doing much. So it was time to clean the foam at first it wasn’t working but after tapping it a few times it just started flowing. So I finished putting it together and it’s back up and running like a champ. Im hopping the flow will keep the duckweed build up down. The shrimp and guppies love eating the stuff of the foam filter too. I would recommend to anyone with a 10-20 gallon shrimp or nano fish tank.

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  9. Clau

    Actualización: le bajé a 1 estrella pprque murió en 4 meses…Es un filtro compacto con muy buena regulación del flujo y aereación opcional.Se mantiene en su lugar con las gomitas y el gancho sin ningún problema.Lo tengo en el gambario de 5 galones y con un flujo bajo, mueve bien el agua.Un detalle, si hay gambas bebés, es mejor cambiar la esponja que trae por una de más densidad ya que con la que trae pueden llegar al tubo del filtro y ser succionados. También se puede adaptarotro accesorio de filtración de esponja ya que el tubo de entrada es estándar.

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    Aquael Pat Mini Internal Fish Tank Filter – Aquarium Sponge Filter System – Small Aquarium Water Filter Pump 2-31 Gallons
    Aquael Pat Mini Internal Fish Tank Filter – Aquarium Sponge Filter System – Small Aquarium Water Filter Pump 2-31 Gallons

    $22.99

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