I have alway's been curious about this stuff. It's 1/4 the price of the stuff that you buy in an aquarium shop and looks the same other than color. I have alway's never tried it incase it contained something that would harm my fish/corals. I too would like to know the answer.
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No matter what the morrow brings, inventors keep inventing things.
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Jonathan
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www.cakerybakery.ca
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