I took this guy in from someone that kept him in a very small tank. He’s been in QT for a few days and then eyes were large but they’re especially large today. He is not eating and looks like he can’t see since he’s bumping into things. Looks like he wants to eat as he gets excited when food hits the water but can’t seem to find it. Water quality is good with no meds as I’m trying to get him to eat first. Is this pop eye? What’s the treatment? Anything I can buy at petco?