Aquacity Aquapapa Bio Sponge Filter 20 or 40 Gal Breeding Fry Betta Shrimp Fish Tank Aquarium (Ship from CA USA) (Air Tubing Kit)

I love these kinds of filters for bettas because theyre relatively gentle, but I think I may have gotten a defective one from this seller. The plastic tube that connects to the top of the filter didnt fit, so my filter is just spewing bubbles in a wider frame and more vigorously than it would if the bubbles were guided through the tube as intended. Overall though, its a good quality sponge, and my large betta doesnt seem to mind the extra surface agitation.

great and nice

Works fantastic keeps the water clean and keeps the good bacteria in the tank

I cannot remember how long ago i purchased this but they are still up and going and running!! so easy to clean! Recommend these! Just make sure you get a worth while machine to go with them because the air pump machine doesnt come with.

I love sponge filters. These are just as good as ATI sponges

I like the fact that it does what its supposed to do--provide aeration and filtering.

This filter is great so far! Even though I pulled out a ruler to get a visual of the size its bigger than I expected, should provide plenty of filtration for my 20 gallon long. The airline hose has a nice tight fit on the filter and after a couple days of running Ive had no issues. The box does have information and instruction in decent English. The item arrived very quickly and was well packaged for travel. I will update this if I notice any issues as Ive only had this sponge filter running for a couple days.

Sponge filters are excellent mechanical and biological filtering devices. Currently using 2 for filtering my 75 gal tank, MAINLY as aeration, and for seeding the sponges for possible new tanks. These can be used anywhere that aeration, water movement and some bio-filtering is required.

I picked this up because I need a filter that wasnt going to push around my betta. Fortunately this filter is gentle and my betta has no problem swimming everywhere in the tank (even around and next to the filter!) I was concerned about how big it would look in my tank but its about the same size as an internal filter and it replaces air stones so I figured in the end its saving me space.

For a 10-20 gallon filter, these are a bit large. Theyre the size of a babys head. They would take up quite a bit of real estate in a smaller tank. Theres nothing wrong with them, they appear to be completely normal sponge filters, just huge. I have to wonder if this size is actually intended for a much larger tank size.