hello everyone. Having some trouble with my 29 g qt tank and tangs. I have been at 0.5 ppm cupramine (salifert test) for 27 days. Salinity 1.020 temp 79-80. Ich has been disappearing and reappearing all this time. I want to eradicate the ich but do not want to cause copper toxicity to my fish. Is hyposalinity the next step? I ordered a Hanna copper checker to try and rule out faulty test kit. Would more time in copper kill the fish?


