Quote:
Originally Posted by Hoppy
Will you, or do you, have to keep the sump totally dark all the time to avoid algae growths in it? I know the biofilm is largely bacteria, which is beneficial, but algae should grow if there is light. My fear of sumps is that I keep thinking of them as just another aquarium tank I would have to keep cleaning periodically, but this one would be down in the cabinet under the tank, where access would be difficult. (I don't mind exposing my ignorance of sumps.)
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Saltwater keepers use a strong light on an emersed screen or tank divider to intentionally grow algae and soak up nitrates and phosphates. However, this involves putting a strong light under the stand where the screen is. I would think that light leakage into a stand (or, say, an under-stand light that's only on when equipment is being serviced) shouldn't cause a problem.
notopt