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

Husband uses these in all of our fish tanks! Good price for an awesome product!

These work great. They keep my water clean n clear. The key to these sponge filters is to go big. The bigger the better and will keep your tank clean n clear longer. You can go the exact size sponge for the tank size, but beware of more cleaning of the sponge and your water wont stay clear as long. Some of the sponge filters I have bought that are on the smaller scale tend to not be able to keep my water clear at all.

Does the job... Great value...

It’s big

These are fantastic

This a big sponge filter,much bigger than I expected.I hooked it up to help me cycle a tank but now its in storage until I need it again.Thanks!

everything is great, except the base is very low, at the bottom where its attached to the sponge, theres no gap so the detritus will be stuck in there good, between the bottom of the sponge and the base. Everything else is great for the price! Bought like 20 of these.

If you have a external power filter on your tank, this filter will help keep the bacterial balance in your tank. It is very easy to maintain and very easy to clean. Just use some water from your tank and squeeze the filter several times to remove the waste and return to the tank. DO NOT rise under tap water, it will kill the bacterial process and cause the filter to have to start over. It is very handy to keep around to seed a new tank and start the bacterial process

Good enough.

The filter works fine and keeps my fishbowl water nice and clear. The only problem I have had with it is that when you put it into your tank it expands to about twice the stated size and therefore takes up a lot of room in my small tank. It works great though so I do recommend it.