Feeding my white clouds today I noticed a female has a large reddish bump on her side. It appears to be growing internally as there is no sore on the outside of the fish. What could this be?? No other fish shown any signs or bumps.
Help! Reddish bump/ulcer on fish!
- Thread starter bettaman
- Start date
Usually any reddish bump or ulcer is a bacterial infection. Eventually it will enlargen and blister. The fastest remedy is melafix.