Strange that reducing your photo period didn't do the trick, it's always worked for me. Any cyano I've had goes away every day only to reappear the next day. All you need to do is shut your lights off each day before it gets too bad, and usually the stuff doesn't have a chance. Once you've reduced it you can gradually increase your lighting again. Cyano is in all aquariums, it's one of the good guys, it consumes nutrients. It's only when you get the ugly blooms due to an imbalance that it becomes a problem.
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05-14-2007, 04:12 PM
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