02-07-2008, 04:20 PM
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I don't know much about meth blue, but I've used TC and I wouldn't use it as a preventative. It's pretty heavy stuff, and kind of overkill. I do know that Pimafix and Melafix are a good treatment for new fish. Pimafix is an antifungal and Melafix is an antibacterial, they're both made of herbal extracts, and won't discolor the water or anything. Bettas are very sensative, so you shouldn't give a full dose of Melafix- only give him 10 drops per gallon. As for Pimafix, I don't know the dosing for Bettas, but I would probably dose it the same as Melafix, just to be safe. Also, you may see "Bettafix" at the LFS, it's the same as Melafix, only already diluted for Bettas, so you can dose that as directed.