I am treating my fish for velvet in a quarantine tank, it is day 4 and he is doing so much better. He even ate today. I'm trying to figure out how long till he is completely cured? He hasn't shown any signs or symptoms from it in the first place besides erotic swimming and not eating. His tank mate died due to velvet so that's why I started treating. In a separate tank, I am treating a new fish with API general cure just to be sure he's not bringing anything into the tank. He is on day 2 of treatment. I want to combine the tanks at some point but I don't want to bring velvet into that tank and give it to the other fish. On the other hand, I am planning on treating for velvet using ich x the blue one when they are in the tank together. So would combining them now be okay since I am going to treat anyways or wait until the other fish is done with treatment. Would it be beneficial since he will get another round of general cure?