It's definitely a must have, by the man who first bred them himself. I'd skip to the feeding part just now, as it's one of the most important thing with young froglets.

Frog bit me the other day, drew blood haha! I put my finger in there and wiggled it a bit to see if he was hungry, he then went for my finger so I fed him some crickets. If they do catch you, don't yank your finger out, spray some de-chlorinated water on the frog and it will let go, otherwise you risk mucking up it's jaw.