Help needed for my fish Pebbles

[AaronMcr]

Hi everyone. I have noticed a lump on the underside of my pet fish Pebbles. It's clearish with a red head. It doesn't seem to be affecting Pebbles in regards to swimming or eating but it's a worry as I don't know what it is. My other fish all seem fine with no ailments or symptoms showing. Can anyone help me and please tell me what I can do? Thank you all so much.

 

[myswtsins]

Could be many things..ulcer, tumor, infection, parasite mark, injury etc. Pictures and more details about the tank (water parameters, maintenance..) could help narrow it down. Clean water helps everything though, start with some extra water changes.