So a couple of weeks or so ago I found this long thing seemingly attached to his face. Well, the very next morning it was gona and in its place is a sore of some kind that actually had appeared as though it had a hole in the center of it. It had been remaining the same for the past week and a half until this afternoon when I observed him it seemed as though it had gotten larger and was moving further across the front of his face. It doesn't seem as deep but like I said, it has gotten larger. It is about the color of his skin, although the edges are more pinkish.
I have attached a picture. A few days ago I added StressCoat in hopes that it may help him to repair his scales and skin there, so I don't know if that has anything to do with the change.
Help please. Other than that, he appears to be acting alright and is eating just fine. And also, the other problem is that I have is that I don't have a quarentine tank set up. Any suggestions? I really want to heal him up.
I have attached the best picture that I could get of the area.