For a couple days he's been really sick and I thought he had SBD, but he must've just been very bloated. He finally pooped and it was kind of greenish, which I was like umm ewww.lol
But now it's normal again. His stomach is finally back to normal and he isn't laying on the bottom anymore. I've been fasting him and I gave him a pellet today and he ate it! He's finally swimming around and coming to me when I go up to his tank.
The only thing I found a little odd is that there are little dots of red on the bottom of the tank (I left it rockless to check out his poop). I'm going to Petco tomorrow and picking up a 2G for him because he's in the 1G hospital tank. Hopefully he'll be ok.