M
Mr Piggy
Guest
The sun will definately give them more light and they may get a little bigger, but nothing is going to make it faster. Remember that moving them outside under the sun is going to shock them a little bit, maybe stunt some growth. Imagine growing up in a low light cave and then all of a sudden getting tossed into the sun for the first time. Just don't bring them back inside after bringing them out, you'll bring in beasties with you.