I put the clowns and tang in a 10g last night using a canaster filter from the main tank for filtration. The copper level set somewhere between 1.5 and 2. The test kit measures up to 4. The wrasse and betta are still in the display tank. They do not appear to be showing signs of infection yet. I will probably finish treating the clowns and tang, then move them to another tank, then treat the wrasse and betta. How long should the main display tank remain void of fish before it is safe to restock?
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