Thanks to all who have responded. I didn't think about the portion size but want him to get enough nutrition to feel like eating again and to gain back his lost weight. Tonight he was much more cooperative about opening his mouth.

He is an albino cranwelli. He's not been a big eater and has gone days between feeding many times. He DID eat the feeding after I switched to coco fiber -- he jumped at the first worm and I think I got him to eat a 2nd one. That was first time he had eaten for at least a couple of weeks. He didn't want to eat again since then -- gave him a few days before I started force feeding him.

My little ornate that was sick -- after the first dose of Panacur, he's eaten well every feeding. He's fine.