How big is he from snout to vent? By the looks of it he is bigger then that opening in the front of your log so maybe. This is one feeder I have not given because I have chosen not to feed my girl pinkies because she has serious digestion problems and it probably wouldn't end to well. If your going to I would wait till next time you find a nice big poo, then at least you know hes emptied himself out abit. And just so you know after you give him this pinkie he isn't going to eat for abit because hes going to very full.