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Old 02-08-2011, 06:30 PM   #8 (permalink)
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Default Re: Alage problem

Without a doubt its BLUE GREEN ALGAE a bacteria and not a true algae.

Usually from polluted tanks, filters, substrate, old bulbs, wrong spectrum of lighting, high PO4 and low NO3 - very high on both, very high organics. Becareful it is an hepatotoxin (liver toxin). Dont splash into eyes or mouth, cuts and wash-up well.

You can treat with Maracyn (antibiotic) or do a blackout for 3 days. You need to clean your tank and check on all the above items first and then gravel vac well after treatment with at least a 50% water change.
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