ICh

[GreenSpottedPuffer]

And I agree, if your fish already have ich bad enough, garlic will not cure them. It will help their immune system though and along with copper, is great. If your fish do not have ich, feeding garlic, as PROVEN by my brothers and a few other biologists experiments, will help prevent ich and other parasites from being able to host on your fish. The ich will still be in the tank but if your fish is not stressed and has a strong immune system, it will not kill them.

Copper will rid fish of ich. BUT its really taking a chance with any scaleless fishes, including puffers and boxfish. There are also long term affects that as I said, may not show up right away.