I've been wanting to make a sponge filter and every page I've found that shows how to make your own say's to use large porous sponge so it doesn't clog as quick. Only problem so far is finding the sponge to make it.
Anybody know where I can score some? I'm looking for a 6 to 8 inch block of the stuff.
Anybody know where I can score some? I'm looking for a 6 to 8 inch block of the stuff.

