I am wondering....... If it were a parasite or bacterial infection......if a saltwater dip would work at the first signs of symptoms. I use a freshwater dip on my saltwater fish when this happens and it works well... The key is to match temperature, and especially ph with ph up or down. Then I dip the fish for 3 minutes and then return to their tank. I guess the theory is that the fish can handle the freshwater but the parasites and the bacteria cannot. I'm not sure if this is sound, because I learned this from a friend a long time ago, but it seems to work for me.
GLTA |