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

Didnt love it. Actually replaced it. Used in a 20 gallon long. Majority of community is African Dwarf Frogs, one Beta, one Pleco. Tank was constantly cloudy, Frogs liked hiding in the folds too so have to be careful with smaller critters.

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.

As described. Great price, fast shipping.

Was actually large and its working well in my axoloti tank

these kick ass

I use these in 10 gal tanks and they work like a charm! My go to sponge filters for small tanks!

I have these in almost all of my tanks; they take some finagling because they like to float but if you plan it right you can wedge it in behind your hardscapes so they kind of blend in and they are SO easy to set up and they provide great biofiltratioon. Easy to clean, impossibly easy to run, I have at least one in each of my tanks.

Love them have them in all my tanks 40 gallons and up. They all r crystal clear

And works great

Slow switching all my filters to these. Can rinse these when full and use over and over. Cheaper to operate than back of tank that require expensive filters.