Advice needed-Curling up leaves, purple kush and jack herer, 2 weeks old

Hello i just have a quick question, i have two plants from seed, 2 weeks old, each in their own 5 gallon dwc buckets. Both seeds are from Californian medical bud, i found the seeds in the bud myself. They are on their sixth set of leaves and at the 4th node the leaves are curling up slightly. P.h. is at 6.05 in the purple kush and 6.10 in the jack herer. I have an oscilating fan circulating air in the room that blows fresh air to them, temps are at 79.5, humidity at 41%. Nutrient concentration 550 ppms using GH FloraNova grow, also a very small amount of myco madness. Sorry about the shitty lighting in the pictures, i'll try to get some when the lights are off later.

Purple Kush




Close Up of the curling leaf





Jack Herer



Close up of the leaf


Any advice on what may be the problem would be greatly appreciated. I am open to all feedback and i would really like to fix the problem asap.

weed.

Looks like a heat issue. I know you said your temps are 79f but that's what it looks like to me.

Temps were at 82 at the buckets, 79 at the canopy my b.

Its not temps, can anyone please help?