I've seen that before, but never when the fish was still alive. Is that a common occurrence for them to pick at a dying fish before they pass? When i pulled him from the tank he was still swimming and breathing which is why i was worried about possible diseases.
I do have a snowflake eel, who I suspect is the culprit, I figured that is what happened, but wanted to make sure I wasn't mistaking it for an illness that I just don't recognize.
My bet is on the snowflake. The only disease that causes primary lesions that look like that is Uronema. Common in newly acquired wrasse, but not long term captives. Also, those lesions aren’t that deep and develop over days.
Normal- pretty much. Fish and inverts scavenge on weak fish and carcasses
