Fancy Goldfish with small lump and white stuff coming out of it
This is my first post and I really need some advice on whatís wrong with my goldfish.
Recently he start to grow small lump on side of his body, and that lump usually get exploded with white stuff on the second day, by third day it will start to heal.
This is the 3rd time he has this now. I have used eSHa 2000 for treating but not sure how effective it is as he still keep having it. None of his tank mates have the same issue.
Although looks a bit concern in the photo, he is completely fine, eating and swimming as usual. Tomorrow he will start to look normal again until the next time he has it again.
Any suggestions on what is it?