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Nanz
04/23/2008, 11:36 AM
I have a 5" DSB in my 75 gallon tank and lately I notice a lot of black around the bottom and sides of the tank... Is this normal? Is it bad? It seems to be getting worse.
mbbuna
04/23/2008, 11:44 AM
http://reefkeeping.com/issues/2005-12/rhf/index.php