Green gelato / northern lights auto rqs

Slowly but surely! Lemme know if you think anythings wrong but they look healthy enough just not much growth, finally today the fan leaves started to resemble what they're supposed to look like! One of the green gelatos hasn't grown since the last update so I'm going to replace her as I still have one seed left! Gunna start on half strength nutrients as you see above from this week, hoping not to burn them! All stems weren't holding their weight but hopefully the wires will do that job just fine, the lights been raised up again to encourage a small stretch now some leaves have appeared, just hoping it doesn't pop into flower in this tiny formation! The heating here isn't ideal and it just snowed so hopefully this tiny heater will keep her growing! Also been watering .75l a day in Coco don't know if it's too little, but would rather not waterlog the bottom of the pots as they're small!