Thanks for your help but there's no way my boyfriend will let me take an angel to the vet. Maybe one of our ropes. Or the knives. Not an angel. You said in the beginning you thought it could be worms - I have little white ones all over the tank. Are those the type that could do this sort of damage?
Last time I got a fish from Walmart, it took out an entire fishtank of 35 fish in three days b/c it was carrying hexamita. In my defense... one of them is some of the best quality I've seen in a half black in a long time. The other has blue blusher coloring. Where in the heck did Walmart find blue blushers?