Take one saucepan
50 ml of canola oil and heat for 5 mins
Take fish and fry for 30 seconds on each side, garnish with a rind of lemon and a little parsley, the fish should now be ready for consumption.
:lol: jokes
Sorry to hear about that mate, I had the exact same thing happen to one of my fish and was told it was an infection, but cannot remember the name of the problem nor the product I was told to purchase. I didnt buy it though as the muppet in the LFS was too vague. It actually corrected itself and after 3 days had gone. The fish is very healthy now. May want to leave it a few days before stressing, however the experts in here may know more, and maybe it needs urgent attention.
Good luck matey