I read that somewhere too, about keeping them in a smaller enclosure while they are young because they can't or won't hunt very far for their food. I actually found that out the hard way. I put mine into a nice big enclosure and then had to keep pushing the fruit flies and pinhead crickets toward them so they would eat, otherwise the feeders would run away and my froglets just sat there. After a few months, after they had become experienced hunters, they were ready to be moved to the mansion.