Thanks for all the advice. Do petco or petsmart carry that or will I have to order it? I scanned the "fish meds" at petco last time I was there and didn't see anything labeled for parasites, but I also didn't know anything in particular to look fore.
Here are a few blurry pics of how he looks now. His coloration is getting better, but his belly is not totally white. Its white under his head, but as you get closer to his tail it gets rather grey. I still think he's too skinny behind his head, even though he eats a lot.
You can see he looks a ton better, from the infested little brown/grey lump he was a few days ago. But he still clamps his tail almost all the time, and he doesn't move around much unless he's eating or once in a while if I sit by the tank he will come and say hi, but never for more than like 5 or 10 minutes before he returns to one of the top corners of his tank just to sit very still and not move. Any ideas?