Quote:
Originally Posted by nanomano
nicely said! when I top of my cichlids weekly, I take the foam out of my filters and rinse the crap out until the water is clear, this can take a few minutes sometimes.
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You're not suppose to wash out freshwater sponges. You're basically killing all the bacteria
Since there's no live rock in a freshwater tank, the sponge is the primary biological filtration.