Well, he's definitely not slowing down any. I had a HARD time catching him today in our main tank so I could put him and the girl with fin rot into the hospital tank.
His fins are a bit frayed... they were like that when I got him, so I decided to put him in the hospital tank. Can't hurt anything right?
I'm not sure how old he is though. All of my fish have grown since I got them so... I'm guessing he's still pretty young... unless they all grew b/c they had a larger tank... *shrugs*
Him and my fin rot gal are doing great for now in their yellow medicated water :P heh Swimming around like crazy, chasing after eachother and looking for food as usual.