Can I feed full grown crickets to a 3 month old Panther Chameleon?
The width, you don't want food items to be wider than the space between their eyes. If it were length we'd all be feeding baby worms to everyone forever!
I would say it depends on the size of your baby. I've seen some enormous 3 month old panthers and others that were very tiny. But in general my babies that age have all eaten 1/2" crickets or roaches.