So I bought a Regal Tank this week, but when I came from a movie tonight he was in the overflow box an is very discolored. I pulled him out and put him in the tank but his black portions are totally clear. Will he recover? Or is this a really bad sign? Anyone ever had the same problem? Guess I'll have to put some mesh on the over flow fast! I know it's not a "diease" but figured some guys in here might know..