Quite possibly. He is getting that dirty grungy look to him. That's how mine started out. Was it a bright yellow before looking like this or always looked like this?

I just bought him yesterday and he was like this colorwise already .. I've been looking for a male !

why do they change to so many differant colours?

Scott once it settles in if a male he may turn dark..

he's settling in nicely ... only now i'm seeing a lil bit of aggrerssion out of him .. I put 2 mor Auratus' out of the 29 gal in with him .. May have to get the Socolofi out of there also , too much action...guess i need to eye up another tank .. LOL