AQQA Aquarium Sponge Filter Submersible Fish Tank Filter Ultra Quiet Aeration Bio Sponge Corner Filter for Breeding Fry Betta Shrimp Fish Tank (Small for 5-20 Gallon)

Super easy to use, cleared the water in our 5 gallon tank overnight. Definitely faster but I'm not trying to put a time to it. Water was very dirty before, now clear. There is no additional noise if you already had an aerator. Works great, great price, definitely recommend. The only negative I could think of is, its kind of large for our 5 gallon but I'm hiding it behind Squidwards house.

This sponge filter is an absolute gem for anyone in the aquarium hobby. I was initially looking at much more expensive and complicated piping and drainage systems, but I decided to give this a try as a more budget-friendly alternative. I couldn't be happier with the results. It's incredibly easy to set up and maintain, and the filtration power is surprisingly effective for its size. My tank water is crystal clear, and the fish seem to be thriving. For anyone looking for a simple, efficient, and affordable way to keep their tank clean, this is the perfect solution. It proves you don't have to spend a fortune to get great results.

Have had it hooked up for a short time now but so far so good as it seems like a well functioning sponge with the bubbles coming out finely without an air stone added which I like, I also really like it conceptually with it being the only stand alone single sponge filter I've seen with a media tray added you can add to which is a nice feature for a sponge filter. My only complaint is the media tray was not easy to pry off even using a butterknife and it slightly broke on the one side it seemed despite being gentle about it. Thankfully I could snap it back it place but it wasn't easy and makes me reluctant to want to do so again to mess with the media in the tray at all, so I gotta dock a star for that. Still good otherwise though.

Works great! I’ve used this attached to my outdoor solar aerator for a fish bowl I sunk into a planter. This simple filter & box has held up to the extreme temperatures, does filter the water, and has allowed me to switch to changing water every few days to a couple weeks. If I cannot change the water, I’m able to slip the sponge off, squeeze it out in clear water & rinse it clean. (I can only do this because I permanently removed the sponge cap after one of my small fish wedged himself in it & passed; I saw the diameter was the same, so it didn’t take away any safety features.) I never have issues with it floating- it’s easy to transfer the sponge while soaking & slip it back over the filter box. The filter effect is strong enough that I actively have to remove pieces of water hyacinth roots! My fish is happy & survived a HOT Summer on a southern exposure patio- the filter kept the algae down to the point one fish was able to keep up with the bit that grew. I have tried a few different set ups to keep this bowl clean & going, I was even told by a pond store it was next to impossible & I’ll kill my fish in the heat. I closely monitored it throughout the Summer & am SUPER PLEASED with this product’s performance OUTDOORS! Not only did it filter & aerate, but it kept the plants healthy, which enabled them to provide proper shade & protection for my fish.

Works great but I never cleaned it. This sopped up a lot of green junk from my fish pond but unless you clean it often, I think it just holds all the junk inside the foam.

Filter works well and almost perfect but the only issue is no matter how hard I try I cannot get into the bottom of this to clean the ceramic balls. Pretty big size for a 5 gal tank tbh I thought it was gonna be smaller. Overall though it does work and do its job I just wish it was easier to clean and it wasn’t so bulky

This filter is a lot smaller than it looks in the Amazon listing. Also, the sponge is actually what you see on the outside upper part in the product pictures. When I received this product I was initially surprised and disappointed at its size and apparent simplicity. Having installed it and seen it in operation, however, I am thoroughly impressed. The product arrived completely assembled, so the only thing I had to do was to soak the sponge filters (so that the unit would submerge properly and sink to the bottom of the tank) and, of course, attach the air feed tube from the air pump. I love the fact that this is completely air driven and and does not need any electric power, so there’s only an air tube and no electricity cord. You will, of course, need an air pump if you don’t already have one. Once I installed the filter in my 20-gallon tank I was amazed at how quickly I could see results. There was a definite clearing within a couple of hours, but the water was almost completely clear after 48 hours. The three photos are upon installation, after 24 hours, and after 48 hours. You can judge for yourself. Highly recommend.

Alright, this filter is a dumpster fire it’s just a large air stone, it has not filtered water at all infact I added my canister filter back on and will be taking this out. My catfish got stuck and I had to pull him out injuring him in the process.

Works absolutely amazing I should have bought the larger size

It did not say that it did not come with an air pump. But over all it was really good💀💀💀💀💀💀💀💀

so confusing to install! how do you fish people do it !!!!!

Works good in small tank

It's a good filter the only problem is it's too light, it's not weighted and I'll have to rig something up to keep it in place.