The Planted Tank Forum - View Single Post - Brown killer algea! HELP
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post #2 of (permalink) Old 03-18-2013, 02:33 AM
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Join Date: Sep 2007
Location: Paso Robles, Ca
Posts: 1,284
Its black beard algae, remove most by hand/toss bad stuff. Spot treat with excel/Hydrogen peroxide. Increase Co2 if possible/ add DIY. Or you can try this method but make sure to read entire page fish death/invert death may happen.

The "One-Two Punch" Whole Tank Algae Treatment
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