I wrote like 5 paragraphs and it didn't post shew. Lol
The twisting of leaves implies it's a VPD issue. Google a chart and try to get your RH% and Temp in the correct zone for their age.
70-75 degrees and 65-70% Humidity is what you need.
If humidity is low you can place
Pots with water in the tent.
Also buy clear cups 'they will need to be large due to size of plants'
Poke holes for air exchange at the bottom of cups. Don't mist the tops "bottom of cup" as water can pool, dropping down and burning the babies.
Also wet towels can be hung to increase humidity.
If it's to high air flow can be increased. Open all vents and add house fans sucking air in, or out.
If Temps are to high, lower the power of light but lower the light closer to the plants so they still revieve the same ppfd.
Opposite of that if it's to hot, lower power of light but then physically raise the light higher in the tent. This will increase the Temps.
Humidity and Temps seem to be your problem. Once you get those dialed in. The plant will be able to breathe thus able to take in nutes.
Goodluck.
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