HELP - Canoeing Skunk

Hi all

Hope that you can help. I am on my third grow indoors with 3 Big Bud, 4 Skunk and 1 Hindu Kush. I am 12 days into flowering under a 600w HPS and use Bio Biz Grow, Bloom & TopMax. Canopy temps are around 80/84 (day) and 70/74 (night) with good ventilation and air flow.

My problem is that the leaves on the Skunk plants are curled slightly along the "seam" with dry looking edges. They have been like this since they were a few days old. All the other plants look great (in fact so do the Skunk except for the canoed top leaves).

Sorry I cannot post pictures but any help would be apreciated.

Thanks in advance.

Sounds like borderline heat/light stress. IMO. Try moving the 600 HPS up some or offset plants under the light and rotate daily.

Leaves...curled up?

Thanks Dutch

That is what I thought but my lamp is at least 18 to 20 inches above the canopy, I turn and or rearange the girls under the light every 1 or 2 days.
I also test the temp above the canopy by placing my hand about 4 inches above the plants and it feels OK.
As I said it's only the 4 Skunk that are affected, the others are fine.

??????????

im curious about this as well, my pure power plant is doing the same thing

canoeing is a great way to describe it, thats what i looks like

ph is fine, temps are fine, i dunno