Its too little to process solids. You can grind seeds, and a little bit of water. If you use a rounded chopstick to feed it, you'll be fine. Or a dropper like Yvonne said.
If he ate two worms is he gonna be ok if he can't process solids? They were very small worms. :/ I have feeding tweezers, but no dropper.
Keep him warm. That's the biggest worry a heating mat under a bowl of nesting would be good.
When I madea nest for my baby doves, I used hay, and one pulled apart cotton ball in the very bottom where they sat. Hay is kind of hard, and could break its skin.
He has a cotton nest/bed thing. I think technically it's for small animals like hamsters, but he seems to like it. For heat I have regular/black light bulbs. Will these work?