Hello, from pic it looks like he's going to loose his eye. Maybe a better pic can help. I was given a black moor goldfish that was missing an eye & other was damaged from being attacked at petco. The manager of fish department new me & asked if I wanted it or they would put down. I've had it for 2yrs now. He swims, finds food & even trys to chase the females.Can somebody please help me identify what’s wrong with my endler?