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Thread: SpiroGyra Algae
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Old 02-13-2009, 12:07 AM   #9
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If we're working on the assumption that the hair algae I had was spirogyra, then Excel does seem to work fairly well at high dosages when combined with high dosage H2O2 also. I used 1ml/gal Excel and 2ml/gal H2O2 at the same time for two days, it incinerated any Excel sensitive plants like suBwassertang & riccia, but did not appear to negatively effect the fish; as always, use at your own risk.

FWIW, the blackout/large water change process only served to exacerbate the problem in my tank. It was not until I vaporized the algae with chemical warfare and followed it up with substantially upping the CO2, did I have any success in beating it back.
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