Garlic only stimulates the appetite. It will not cure a fish of the parasite. Only help them eat and build up their immune. And even then, the parasite is still in your tank. The only two ways to kill it are copper and hypo. Neither r reef safe but both 100% effective. Tank needs to be fishless for 5 weeks with fish in treatment tank that long.
Trust me I've been there last year and did a ton of research.
Lindsey you are correct on all of that. Ive been researching as well. And it truly is only going to get out of the tank and if do remove all of them. But i simply dont have the means to out all 11 fish in a hospital tank for that long. The plan is to drain the tank and pull the 3 really infected fish and start copper. I have to move the tank to hook up my sump anyways, so this is excuse to go ahead and do it. All i have is a 10 gallon for a hospital, so 3 is all i can handle in it, and i really think its too small....we'll see what happens