I bought 2 Springer Damsels about 3 weeks ago, they are currently sharing a 75 gallon tank with 2 clown fish. At the end of last week, I noticed the bigger Springer was missing some scales above his eye that were there the day before. It does not seem to be getting better, in fact, it seems to be getting a little larger/longer. I originally thought he had gotten into a fight and it would heal.
Does anyone have any thoughts on what this is and if it needs to be treated?
Does anyone have any thoughts on what this is and if it needs to be treated?