Curly young leaves (help)

Wow, you guys are doctors! Thank you! Well, I haven't watered them since Saturday (2 days ago), and I won't give them water for about two days depending on their progress. As for watering, I was giving them water every 3 days based on the weight of the pot and the signs from the leaves. I was giving each pot about half a liter of water for the 12L pot, or half a liter of fertilizers alternating with the biofish 2.5ml per liter of water / and the biogrow / 2.5ml per liter of water. I was giving each pot about half a liter of those fertilizers (one week one, the other the next) for the 12L pot. With the light, I did the exercise of putting my hand very close to the lamp to see if it was too hot, but I really don't feel much heat, just a warm sensation without burning. I programmed it TODAY to start flowering. So, should I give the Biobizz Calmag in the next watering or wait for the one after? The pH I've been giving lately was between 5.80 and 6.3. The idea was to try to lower the pH of the soil. I measured the soil a month ago, and the pH was a bit high, almost at 7, maybe a little more. I hope this info helps a bit to find the problem, and thanks, community!

biofish is insanely potent, any wrong ph swing with him - deadly for plants, light change big event too. Give them time and do what i wrote bellow.

calmag is your savior here, but why they show those signs is question : i would suggest to check those things first Are you watering enough and right is ph right inside of pot, so check run off That will tell you either you overfeeded them or underfeeded, that will lead to your future actions Distance of light, arent you burning them a bit Your answer is inbetween those Nothing is lost ! Happy Growing !!!