I love that stage. Every day there's a marked growth that's visible. Plus they're so dang cute LOL.
Hmmm, I think they were big enough to start eating black worms after about 2 weeks. I just threw some in there and they figured it out pretty fast. I think I posted about their switch to black worms in this thread somewhere, there should be a picture for comparison. Ill go look and see if I can find it.
I actually buy my black worms locally, I get a great deal on it by the pound, but they have them for sale on this site too for a great price.