3 of my rainbow fish came down with a bacterial infection a couple months ago. I started treating with daily water changes, no improvements. So, wanting to stick with snail safe meds, I started using Melafix and Primafix with water changes every other day, still no improvements.
Then did a week and 1/2, treatment with Maracyn and Maracyn-two. No improvement and the Maracyn cost way to much to continue treatment in a 65 gal tank.
So moved the snails in a 20gal QT, and switched to Acriflavin. I am guessing Acriflavine is not Mystery snail safe?
Problem, the cories did not eat tonight. With the Acriflavin, I have to do daily 50% water changes. The cory seemed a little slow to move out of the way during the gravel cleaning, and thats a little strange for them. This is day four of the Acriflavin treatment, with little improvement.
The reason for treating the whole tank, was because I believed it to be contagious, but only the same three fish are sick.
I could move the cory into QT with the snails, or move the three sick rainbows into qt and quite treating the whole tank. Only problem with that, I don't know when it is safe to put the snails back into the 65 gal. Afraid to put the snails in another fish tank, not sure if they could be carriers of the disease.
Sorry for the novel, any advice is welcome.
PS, there have been no new fish added to the 65 gal for months, so why the outbreak, I have no clue. There has been no water quality problems either. The fish have sore spots, with missing scales, one with cloudy eyes, and a few white patches. Looks like a columnaris outbreak. The rainbows are still eating and act healthy, just look bad.