Thanks again for information. As for size, the fish is approximately 12 inches.
As for redness, i caught him to apply some more acroflavin the other day and upon drying the lump (beofre applying treatment) my white towel slightly reddened, telling me that is was oozing a tiny bit of blood
Another thing that might be useful is if i mention that this fish has had this lump for probably over 2 years, but i have been battling a long term illness myself for 3 years so havnt made it a priority to look at.
Does this change anybodies view?
thanks