Tang... White spots on fin

[Metrontech]

What I mean is if I remove all my fish and treat them

What kills it off in the tank?

The problem is that I don't know how it go in there, which I have read can come from anywhere

So whos to say I spend hours getting my fish out and days treating and then they all get it again when I put them back in?

Originally Posted by Metrontech

But there just be a way to kill it off in the tank

Uv?