The Planted Tank Forum - View Single Post - Sign of BBA on Java Fern?
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post #5 of (permalink) Old 08-04-2012, 04:39 AM
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Kill it (Hydrogen peroxide or Excel).
If it turns pink then it is one of the Red algae, such as BBA.

If it is very fine strings, not bunched together then it may not be BBA. BBA usually shows up bunched together somewhat. Black spots on the leaves sounds like BBA, too.
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