Thanks for your response! Some answers:

How often is your a/c running? It is on 24-7, and it always blows air even if it is not cooling. I have a shield on the AC so it doesn't blow directly on the plants. Also, I just raised the light to 14 inches above the top colas. I measured and it was really only about 10 inches before.

Are your other strains as tall as this one? Is it only the top colas on the plant that are affected? This is the middle height variety, placed right under the light; see pic. It is not only the top colas. Other leaves around smaller colas lower down are showing the same symptoms, and there are also leaves that are not around colas that are turning yellow.

Is it hot to you at the top of the canopy? I could feel some warmth so I raised the light as I mentioned above.

In the pic of the whole setup: the querkles are on the left, then the hindus in the middle and the caseys on the right.

The yellow leaf pics are showing what's happening with leaves not associated with colas. This is happening all around the plant, a lot of the yellow leaves are lower down.

Thank You,
DreamTender
DreamTender Reviewed by DreamTender on . hindu skunks with curling brittle leaves, yellowing leaves, purple stems Hi fellow gardeners: First-timer here, having problems with my 2 hindu skunk plants. Here's the form and pics will follow. What is your experience level? first timer Your Equipment: .1) Type and wattage of lights. 1 x 1000watt HPS bloom light .2) Distance from tops? 12 inches .3) Reflector type? enclosed reflector .4) Is there a consistent fresh air supply? yes .5) Do you have an exhaust fan and a circulation fan? 1 fan cooling the light and 1 fan supplying fresh air Rating: 5