He just ate! I took the advice of putting cardboard on one side of the front glass and trying during daylight hours. I shut off his light so it wasn't as bright and pointed my electric heater toward the open side of his cage while I heated the rats head. He didn't come out but as soon as I put the head of the rat inside his hide he struck it. I'll try next feeding the same way. I still think its weird he refused anytime I tried black rats. Every time he has ate has been white rats. Including today. I'll just keep trying white rats and if he keeps eating them then great. He has never refused a white rat.