Twisted and shrivelled leaves

these were clones planted 3 weeks ago. There in some promix that was amended back in the spring with compost and 4-4-8. I had potatoes growing in this mix. When the potatoes finished I saved the dirt mixed in about 10% compost watered it and it sat for 2 weeks before my rooted clones went in.
there under 200 watts of strip led about 30” away. Temp is 75f lows of 67f. I’ve only given straight water. Ph from tap is 7.2 150 ppm.
the new leaves have this funny. Twist shriveled look. Can’t figure it out. They’ve been watered Several times. The water just runs through the pot. Not sure what the deal is there. Any who. Pics.

Just a guess here, I would be trying a little gypsum myself. Shouldn't affect your soil's ph and should help condition it some.
At the very least, I don't believe gypsum will hurt it.
I'm leaning towards calcium / sulphur deficiency. So that's why i'd choose gypsum myself.

All the best. Have a good 1.

Calcium you say?Hmm could it be as simple as ad some calmag.I think so.Thx.