I know I should quarantine new fish, but I don't have the space for a second tank. So, I was thinking, I know peroxide won't eliminate everything, but I feel like a bath before introduction would eliminate a couple of the more serious and common issues that come along with some non-quarantined fish. I asked my LFS if that made sense and they assured me that it does. Any reason not to do this, other than possibly stressing a fish?