StephenP2003 Posted August 25, 2020 Share Posted August 25, 2020 Someone told me this might be cyanobacteria on my subwassertang. Never seen this color of cyanobacteria, and a Google search only returns results for saltwater tanks. It does seem to rub off pretty easy, but I can't really scrub it because the subwassertang is too thin and delicate. Link to comment Share on other sites More sharing options...
Administrators Cory Posted August 25, 2020 Administrators Share Posted August 25, 2020 I've definitely seen it that color before. Personally I'd treat it with maracyn. Link to comment Share on other sites More sharing options...
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