Quote:
Originally Posted by Ron Reefman
Lighting probably isn't your issue. Lights can have some effect on cyanobacteria, but there are lots of other contributing factors as well. If you are trying to get rid of the cyano strictly by adjusting your lights you will likely be unsuccessful.
The one thing you can do is siphon out all the cyano and then run with your lights off for 3 days. Or 1 day with lights off and 3 or 4 days with just blue leds (the corals will be happier but the cyano won't like it.
But your real problem is probably flow (as Grimreaperz said) and nutrient (including carbon).
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I did turn off one power head. Thought this maxspect gyre would be plenty. I can definitely dark out the tank. Thanks.