The leaves on four of my six two week old plants have went from perfect and stretched to crumpled crinkled and dry looking. I have them in foxfarm soil under a UFO grow light. Any suggestions or help is really needed and appritiate!!!
The UFO is definitely not the best LED you could buy, but I doubt that it is causing this particular problem with your leaves. Stretching...? Possibly.
No stetching, they look like they need water but I know that over-watering can cause issues so I'm very careful with the watering and if anything it's underwatering but they get drinks on a reg schedule.