Quote Originally Posted by martyrprojekt
I beg to differ sir. If it was light issues we would be seeing the buds and the leaves surrounding the buds with the majority of the damage, since they are closer to the lights than the leaves (in most cases). In most cases I would agree with you...but, the pictures say a completely different story.

Nutrient application is not being done with every feeding either. Sporadic usage of nutrients, feeding inconsistencies, etc....all lead to nute burn because it is being hammered with nutes once...the plants never truly get the benefits...

I can understand how you feel this would be lights (but...it is the lights burning the leaves due to nutrient overload).:thumbsup:
-----that sounds like the best advice i've heard so far, thanks marty. i believe my semi flush should help out. after i flush, should i wait until next watering to add nutes/ferts or should i add a mild solution to prevent deficiencies?

Quote Originally Posted by palerider7777
i was going to say if it was'nt nute burn it was prob heat not light burn lmao"light burn"roflmao.but you said they were 24inches from tops of plants which is plenty of room unless you don't have any fans in the room or venting out of the room.
oh yeh its at 18-20 inches and its air cooled, along with a ton of ventilation across the canopy, i've lowered my canopy temps to 77 and it controlled so i was really thinking heat stress was silly, i thought perhaps too much light but that didnt sound right either. i really hope my semi flush helps out, ive got my fingers crossed. thanks guys