Curly leaves

[arctica]

Previously damaged crop came back to life - so i forced veg state for several weeks. Suddenly the new leaves stopped developing and started to curl downwards. This started b4 any feed (i've done one feed with bloom). The leaves seem kinda dry, but they don't look burned. I'm one week into 12/12 light cycle. Anyway to fix this? Is it too hot, too close to light, or levels off???

 

[SwissCheese79]

76 is perfect temp at the canopy. How is ur humidity? Too low and they dry out and cannot "breathe" right. Should be 50%. There should not be a big swing in day / night temps as well. If ur environment is ok I suggest a flush with ph'd water. New growth should.not curl but the old leaves may stay curled... Is it a sativa dominant strain? They tend to curl easy....

Good luck..
Swiss