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Originariamente inviata da Rama
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Do you think is'nt danger in marine water? Can release metals? How many efficent is steel wool in the po4 reduction? Can work under 0,05 mg/l?
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I know people who uses this method since for a long time and no problem. I am not an expert to say what that releases but the idea at summer given by a biologist…
It is true that from 0.05, the steel wool has sorrow to reduce low