I had a cyano problem on my tank and I used chemi clean. I first figured out why(insufficient flow) then I syphoned most of it out and then dosed with chemi clean and no cyano since. I know a lot of aquarists don't like using chemicals but this stuff is non toxic to anything you might have in your tank and this stuff really works.
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Hi, my name is Jason and I\'m addicted to reefs
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