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Old 01-13-2007, 05:29 AM   #4
Reefneck
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Join Date: Oct 2005
Location: Near a Coral Reef
Age: 47
Posts: 1,351
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Cyanobacteria is "Cyan" in color. Not turquoise or greenish blue. Could be coraline. Depends on how long the tank has been running.
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I wonder how much salt mix I would need to turn our in ground pool into a Reef.
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