How often is your a/c running? Your a/c will cause the humidity level in the room to drop, combined with the close 1000w could be causing some burn issues. Really need to get a hygrometer of some sort, you want your humidity in flowering around 40-50%.

Are your other strains as tall as this one? Is it only the top colas on the plant that are affected?

Is it hot to you at the top of the canopy?
irydyum Reviewed by irydyum 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