DESPACITO 6pcs Fish Tank Filter Sponge Aquarium Filter Sponge Pad Cotton for Fish Tank Washable & Reusable Biochemical Sponge for Aquarium Filters Media Accessories Filtration Foam 38x12x2cm Thickness

Go for it. Excellent sponge for aquarium filter. It traps the waste from the aquarium water. Washable and reusable.

Good product

This product was life saving. My fish tank was covered with bacterial bloom for almost a month but I have added this filterproduct in my internal filters and it cleared my water within 48 hours of use. You should definetly buy one of these if you are having trouble in filtration of tank.

Good

I have been using this for my canister filter and my top filter after using it for more then 10 days it got dirty to I used hot water to rince it it was as good as new overall the standaed cotton polimer needs to be thrown out but after buying this I think I would be spending a lot less good choice for filteration

A large 40x50 cm open-cell filter sponge sheet for aquarium sumps and top filters. The foam mesh traps physical waste effectively and handles washing well, though the purchase price is steep.

Nic

Does the job. Just make sure that you replace them every month at least once.