Sinistard Posted January 1, 2005 Share Posted January 1, 2005 I'm new to reef tanks, my tank has been cycling with LR in it for about 4 days. I found a blue circle on a piece of LR that i don't think was there before can anyone tell me if it is anything or if its just a blue spot on the rock. It's about 1/8" across maybe smaller. Thanks for looking Link to comment
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