My bad on the details. I entered all that in my profile and thought it would show up like a sig. anyway, upon further searching I believe it to be light burn. notice it is primarily the center leaves that are affected. This is my first experience with a hps lamp, i started it under a 250W floro, then moved it to a 60ow mh and now flowering under 600w hps and have been keeping the light about 10" from the tops but moved it up another 6-8" when the lights came on earlier.
OG Kush
600W HPS for flower
approx. 4 sq. ft but not 4'x4' dimensional will get more accurate measurements later. (i know 600w is overkill)
190CFM inline fan w/carbon filter and lamp fixture has inline cool tube.
190CFM forced air input pulled thru portable a/c
She is in soil and have been using foxfarms soil trio increasing dosage small amounts at a time last feeding was:
Big Bloom = Full strength
Grow Big = 50% strength
Tiger Bloom = 75% strength based on foxfarms feeding schedule. i feed, water, feed.
Just received
Advanced Nutrients Sensi Bloom, that pH Perfect stuff and am planning to switch to that on next feeding at 75% strength as i read someplace someone having no problems with it at that dosage for most strains.
But, i digress... i do believe it is light burn. can anyone confirm?
Thanks!
*EDIT* If it is light burn, how will it affect my harvest?