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- Apr 21, 2019
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My first batch of fish are about to go from QT to DT. for the last week I'll run carbon through the QT to remove the copper and prob the day before i actually move t he fish I'll also do a 50% watch change. Before I add my 2nd batch of fish into the QT do I need to sanitize the QT or can I just add them after I move the first batch of fish out?