| If your calcium could reach that high a level.. I would imagine that you had a snow storm and you are seeing precipitation of calcium carbonate. Otherwise *shudder* it looks like hydroids!
Dave
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"Fins to the left...Fins to the Right, I'm going home to play with my reef tonight..."
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Experience in aquaria, 35 years. Experience in marine, 20+ years. Experience in Reef Keeping, 6 years. Always a newbie! | 
