For one thing, yours is not a "typically younger fish" at 3 years of age. And also, no, they aren't. Normally the dorsal and caudal fins are longer than that. It is hard to explain, so heres a pic I found that shows the typical body shape of a healthy gibby:NixMix;4516903; said:Aren't those normal signs of a typically younger fish anyway? His proportions are still changing, even from when I first had him.
^^This isn't mine btw, I couldn't find a good picture of mine showing the entire body with the dorsal fin showing, so I just got the above pic off of google.