Fins almost look too long to be either Det or SDet, but I'm no professional. I'd guess VT, though. He's GORGEOUS!!!
Paarthurnax, my very split second decision purchase today, was fading as well. I got busy and lost track of time on putting him in a tank. Next thing I know, it's two hours later and he's almost completely gray. I almost had a heart attack. His tank was ready, but I'd been busy trying to get rid of my cichlid. ANYWAYS, I put him in his tank and now he's way brighter than he was at the store. Like, within an hour.