I like it more than any other copper medication. With a copper test kit it is very effective. when it was discontinued I went to fish stores and bought any left overs I could find. But now the product is back on the market as production has resumed. I never had a bad experience with Coppersafe.
Only negative I found was that medication required doubling the recommended dose to reach 1.5-2.0 ppm level as recommended by the manufacturer as well as Drs Foster and Smith website.
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