Hi! We really need more information in order to be able to help. Tank size? Stocking? Numbers for ammonia, nitrite, nitrate & Ph? Water change schedule (%/#wk)? How long you have the fish/any new fish fish added in past few months? Exact issue/symptoms and long they have been occurring?
I can see a single white spot in the pic but its too far away to be able to tell if its a missing scale, a parasite/worm or something else. Answering the questions above with more specific info will help!
Calypso77 said:What jlk said.