up to 10Gal

I bought these in a bit of a panic. I was moving, my fish tank contents were going into a bucket for the move, and I had not intended to have a filter in there as originally, the bucket was going to be substrate, hardscape, plants, and snails. Then a wrench in the shape of a rogue shrimp showed up in the tank (I had rehomed my other fish and shrimp so as to not put them through a 10 drive through really awful weather. Apparently, I missed one.) Suddenly I needed a filter and a heater. I bought this set of sponge filters and I'll be honest, I was never fully convinced of the effectiveness of sponge filters before this. I figured that they were good for minimal filtering and mostly aeration... at best. I got these and proceeded to move everything into the bucket for the move. I have a substrate that is particularly dirty, no matter how much you rinse it or vacuum it. It's ALWAYS FILTHY. So I was not at all surprised when the water in the bucket turned nearly black from yuck as I moved everything into the bucket. I put the sponge filter in and didn't really think more of it, just got back to packing and trying to get ready for the move. I was completely floored and shocked when I peered into the bucket about an hour later and the water was CRYSTAL CLEAR. I mean, COMPLETELY, 100% CRYSTAL CLEAR. I understand that the substrate is cleaner than when I put it in the tank initially (after several years of filtering, I would certainly hope so), but back when I first put in this substrate, clear water took more than a WEEK of aggressive filtering with a HOB filter, changing the filter floss daily, and water changes daily. During the move, the bucket got shaken around in the car, then hauled into hotel rooms with me, shaken around more as I got it onto and off of luggage carts, up onto tables, off tables, etc. But the filter continued to get that water clear in less than an hour. EVERY TIME. I'm so shocked, that even now, a month after the move, I still tend to be amazed and wax eloquent about how amazing this filter is/was. I was wrong, Cory was right. Sponge filters are amazing. I completely recommend these and will buy more in the future, in case I need them! Heck, I'll probably rejigger my 3-gallon quarantine/hospital tank so that it gets a sponge filter instead of the built in filter system that is sort of a sump and sort of a hang on back. (it's one of those all-in-one tanks, what can I say, it was the right price and the right size at the time.)

Great product for the price. Filters my tanks well. It is a bit cheaply made tho, I had one them brake apart but I’m not mad for how cheap they are. Good size as well, easy to hide.

These are always great sponge filters! Perfect for my fry tank! Also great to have to squeeze into new tanks to seed them with beneficial bacteria! Must have for if another tank cycle crashes! Highly recommend these

Love them perfect for my bettas

I got these for oxygenating my tank while using my canister filter or hob filter as it’s not uncommon to have impellers stop. They’re priced right and they provide oxygen as I’ve cut around the plastic in the interior to accommodate an airstone. I did have an impeller stop while gone and fish were fine but the sponge didn’t filter or clean anything. For oxygenating they work fine but beyond that I see no difference , except larger bubbles, than a airstone. I take the sponge out and squeeze but nothing comes out. The tank stays cloudy after a water change until the next day like if there was no filter. I believe it would harbor bacteria. Perhaps that’s the purpose as it certainly doesn’t clean anything.

Works well in a 60 and 90 gallon tank. Originally switched from a large waterfall filter to these sponge filters when the waterfall filter started getting too loud and having parts wear out from sucking up sand. Since these sponge filters don't have moving parts and uses air to filter, you don't have to worry about parts breaking, just squeeze out the sponges during water changes and occasionally take apart the plastic to clean off buildup with vinegar. Can also rinse the sponges out into other tanks to introduce microbes and waste to new systems. Recommend getting an adjustable air pump to control the level of bubbling. Works well with floating plants and water roots. The sponges started showing wear after about two years.

Four minutes from assembly to "sick tank". WIN!! Durable construction. Clean. NO parts missing - YAY!! Definitely worth the money. Will get larger one for maintenance tank. *NOTE: Doesn't include air tubing.

Does what it is intended to do and use in several of my tanks already without issue. There’s really no need to spend more money on more expensive filters.

Great size for my 5 gallon tank. Was confused when the packaging didn't say Aquaneat on it. Instead it said Xinyou, and it had a different model number, but they are the same size and seem to be decent quality. The sponge is much thinner and coarser than the Seapora one I had in the tank, but I'm not concerned since my betta fish doesn't produce much waste, and I routinely take out uneaten food and waste after feeding him. I rinsed everything in my tap water first, and I floated the new sponge in the aquarium for 3 or 4 days before setting it up, and am leaving the sponge from his old filter in the tank for at least the rest of the week to ensure I colonize the new smaller filter sponge with the good bacteria. I never bothered modifying this filter to fit an air stone, since the inner chamber was pretty narrow and I figured the bubbles would be pretty small coming out of the upper openings. I was right...the bubbles aren't too big or loud. It might be a bigger issue if I had the air flow turned up on full power. You can see in the picture where the gravel went around the base if the old sponge filter, now it looks like a crater around the new one lol. I'm happy that Angel has more space to swim around now.

It's not the exact same product as in the pictures. The sponge foam in the photo seems coarser and more porous, while the ones I got are much less so. Functionally, it works fine as a sponge filter, but the less coarse the sponge, the more often you have to clean it.

Described as pack of 3 but only 2 arrived

Bien pour une 2gallon apeupres trop petit pour une 5 gallon à mon avi . Un brin déçu je m'attendais qui serai un peut plus gros

Will get more