They're fine like this for about 2 weeks.

Ditch the tin foil, you'll burn them, use a sheet, mylar, or flat white paint.

Your CFL should be right on top of those plants, your not going to burn them (use your hand as a guide) that's why they're stretched out, they should already have a 2nd and creating a 3rd node. They're stretching to the plant.

If you use pearlite you should use verm (what I've been told) Just keep your N level high, and soil moist for now, you'll be fine.