I've always had undetectable nitrates and phosphates. Corals were getting a little pale so I started dosing nitrates a few weeks ago; I'm now keeping nitrates around 2ppm. This definitely helped the corals--the SPS are much brighter and seem to be growing faster, the LPS are much more expanded. But I'm starting to get a lot of cyano on the sandbed. There was no cyano at all before I started the nitrate dosing. Anyone else have this problem after they started nitrate dosing? Does it go away after a while? Anything I can do to get rid of it?
cyano after nitrate dosing?
- Thread starter PaulK
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Brew12
Electrical Gru
You changed a balance in your system. I'm actually surprised you ended up with cyano instead of dino's. Try raising your nitrates to 4+ and stir your sand bed daily to break up any cyano mats. Some more common strains of cyano cannot form mats with nitrates >3ppm. Your tank should find a new balance before too long and it should go away.
