get where your coming from "just survive" but better to have them fine and dandy before you stress them by putting outside, but if your gonna go ahead id start with checking my ph, get that right, ideally re=pot in new soil, even if its only for a week, get some nitrogen into them, they look a bit tall for decent light penetration from small amounts of cfl, (what bulbs are you using/for how many plants?) so try to position bulbs around them, generally plants grow well at first then as there needs change they let you know and that's whats happening here, you can sort it out but you need to get the basics down, good luck though