CLR didn't work either. I'm filling the tank now to see if it is noticable when full. I would imagine that it is just a calcium build up seeing as how it was a reef tank before. It has been down for about a month now. So I'm hoping it is not going to be noticable.
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Marty
50g reef, bubble king skimmer,20g sump,zeovit system, PM cal reactor
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