Can anyone tell me how often I should be washing/cleaning my filter media??
The tank is a (all in one) innovative marine 30g. Its a fowlr
. At both corners there is an overflow which then goes into the back of my tank. The filtration is kinda like a plastic basket (one each side) and they hold a mechanical sponge, then underneath an activated carbon sponge then finally under neath that a phosphate sponge.