Quote:
Originally Posted by Palmer
I am a newb still so take what I say with a grain of salt... I know in fish farming applications where there are lots of fish in a small area (even saltwater) the wet dry (bio balls/screens etc) principles are still considered a useful and practical form of biological filtration.
Palmer
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This is absolutely true for fish farming, or even a heavily stock fish tank. But a reef is less tolerant to the nitrate produced by these, where fish basically don't care (within reason).
They'll also do nothing (good) for any algae issues you might have.