Hi all,
Where would I get sponge to put onto my wet-dry sump? I know many places has them, but which is specifically is ok for a fish tank? Mine is getting pretty beat up and I want to switch it.
Many thanks!

Where would I get sponge to put onto my wet-dry sump? I know many places has them, but which is specifically is ok for a fish tank? Mine is getting pretty beat up and I want to switch it.
Many thanks!