if they are then you don't need that much light yet, they definately don't need the HID yet
also, they're not ready to be moved into a hydro setup yet, wait til you see roots comeing through the rockwool, while you wait for the roots, start reading the FAQs, most of the answers you need will be there, it'll take a little digging, and you'll read a bunch that won't apply (yet) but you will learn a whole lot more than if you just ask questions.
anyway, keep it up, and look for what they call 'stickys', those are threads filled with so much useful shit that everyone should read them.

bozo,
peace, love, dope