My sick baby!!!

This morning, I woke up to feed my fish as always, and Big Fin looked like a cartoon! His's eyes were all puffy! I looked it up online and it turns out he has pop-eye!!! =(

He looks something like this fish, but both eyes are puffy. I'm gonna get some antibiotics from Petco today. I hope he get's better. My poor baby! (I hate to say this, but his eyes really freak me out...)