An Update since I've had the fish for a year now.
The only thing I've gotten him to eat are worms. No other foods that I've presented have been taken. I'm fine with him just taking the worms but I'm concerned about his size. He really hasn't grown much since I've gotten him, really an inch or two. He probably is about 6 inches in size right now.
It must be his diet that I'm feeding him. I probably should have left him in his Q-tank and just fed him live until he put on some size and them moved him into my big tank.
I'll file this experience under lessons learned.