using a 300 watt led , and ~100 watts in cfls. Haven’t started nutes yet , all other plants appear healthy all getting same water , light etc .
It’s potting soil + coconut fiber (when I planted as seedlings I left the actual seed part above ground so I used the coconut fibers for humidity around the seed)
I'd transplant them into either a good soil or a properly prepped coco coir/perlite mix asap. And bury the stem more on the one that stretched