My smallest guppy in the tank has unfortunately had his tail nipped in a few areas. I do try to avoid using medication but Iām thinking of treating with melafix in case itās fin rot or turning into to fin rot. Iāve seen guppies tails heal within a week that have been split with 75% daily water changes. However, his tails nipped in more than one area at stated. Has anyone had any luck using this before? Iāve never used melafix before so Iām not sure. Any help would be appreciated. Thank you.