He is awesome.....you did a super job rehabilitating him !!
I have a red (orange?) VT but he doesn't look so "full" like Fizz does. I guess Sparkle is just a different 'type' of VT. He is healthy as far as I can tell....flares+eats like a horse+zooms around his 5 gallon home+sleeps in between his silk plants+swims to front of tank whenever I walk into the room. I love him and he loves me....YAY !!
I wish he was a "fluffy" VT like Fizz though....never saw one like him :)