When I went to feed Albatross today, he tried to lunge for the pellet but then jerked off and went hiding, which isn't normal for him. When he came back out, I took a look at him. There's something wrong with his face. It looks like a rather large gash going from his mouth down, and one sore-like thing close to his eye. Actually, the whole right side of his face is looking quite puffy and disfigured.
The decor was the same that he's always had, and I've had it in with other fish before with no problems, and his plants are silk.
Can anyone help me? It does seem very painful, which I think is why he doesn't want to eat. He's mostly been hiding and laying down today.
Here's a picture of it. Sorry that it's blurry, I'll try to take a better one of it later when I come back home:
Compare to what his face normally looks like: