I lost 4 loaches that I purchased recently. I bought 2 large ones and put them in separate tank and after 2 weeks time added another two. 2-3 weeks later I noticed some problems and found that fish have obvious signs of itch. I have heard that clown loaches are susceptible to itch but hoped that fish 5-7'' got some resistance. I was wrong, the problem is that I have noticed all of this when itch was well developed and fish suffered badly. I treated them with salt for half an hour in a separate tank, made the same another day, then changed all the water in the tank and after that added some methylen blue. Next day 2 of them died, another 2 day later.
Do you think that it was too late to treat them and salt and methylene weakened the fish more so it eventualy caused their death?
In the future I will by buying more loaches. What can I do to prevent itch outbreak?