Baffling with a sponge

[leaveittoweaver]

If you use a sponge to baffle the filter, can you just use any sponge or do you have to use aquarium sponge? Thanks :)

[Alex09]

I would just use an aquarium sponge to be on the safe side. Its about the same price and guaranteed to be safe. Most kitchen sponges have chemicals and other stuff added to them.