uxcell XINYOU XY-380 Aquarium Fish Tank Biochemical Sponge Filter, 4-1/2-Inch (1-Pack)

I really like using these in our fresh water aquariums. Change out about every 6 months. Does a good job filtering and good bio filter will build up. Arrived very quickly. Good price, cheap filtration solution if already have an air pump on hand too. And so much quieter than our hang on back filter. Using in a 40 gallon with beta sorority, some tiny schooling fish, some snails and small bottom feeders; not a terrible bio-burden so this works nicely.

not a bad choice for $6.

My least favorite sponge filter out of the 5-6 I have. I dont feel like this really traps anything or helps to filter my tank. I use it more as a bubbler for my gold fish. They seem to like to swim around, behind, and over this.

The weights that hold down the filter is a little light, cheap.

Great product installed in my 10 gallon aquarium so I can start baby fry in few months.

Loved them !

I have only had it in the tank for a month or so but appears to working fine.

Great suction power

Thanks

Easy peasy sponge filter. All you could want in a utilitarian filter without the usual price gouge. Ive got 3 now, 3 mini sponge filters on the way and will order more soon!