As a few of you are aware I have got 2 pepper corys on Saturday. I have just noticed this evening on one of them they have a red area around the body just where the Pectoral fin joins the body. I'm not 100% sure but i dont think it was there when I got home at half 4 have only just noticed it now. The fish is still swimming fine. I did a check on my readings to make sure there was nothing wrong and there is nothing bad to report there. Amm 0 Nitrite 0 Nitrate 10.
Should I be worried? Is it likely he has just caught him self on something?
Sorry about the picture but he doesnt want to sit still for 2 seconds lol and my camera cant focus clearly enough on it