
jetsetwilly
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May 16, 2007, 4:38 AM
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Pond sealer toxicity to fish
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Hi all, My pond has a high pH that has not gone down when I have added pH down products. I have a lined pond that has a concrete rim that just touches the water and a rock waterfall which I suspect is causing the high pH. I have bought G4 pond sealer and my question is can this product be safely used with fish in the pond. I am concerned that if I partly drain the pond and try to paint the concrete some sealer may drip or otherwise contaminate the water. Will this harm the fish or are these products fish friendly? Thanks for your help Pablo
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