I just read on another reef forum of people getting tainted silicone and it doing something similar. I will try and find the thread. But basically it said the silicone was treated with a fungicide even though it wasn't supposed to have been. Same thing fish lived corals, clams, most inverts did not. I wonder if there is a way to clip some silicone and do a test? Maybe the levels are low that only effects sps...as they are proably one of the most sensitive in the tank?
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I once had a Big tank...I now have two Huskies and a coyote
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