I am having an unusual problem that I do not remember experiencing in my 8 years of cultivation. I have parts of colas and buds on plants drying out completely and turning a very light to brown. Initially it was just my Northern Light, then I noticed it on my Aurora Indica.
A little more background. I am growing in a 5 x 5 Gorilla Grow Tent under two Electric Sky 300 LED lights. I have 2 rows of 3 plants with an oscillating fan at the back of the tent on one’s right when looking in the tent. I say this because the first plant to display this condition was the one closest to the fan. This has been happening over about a 6 - 8 week period.

For more detail:

A little more background. I am growing in a 5 x 5 Gorilla Grow Tent under two Electric Sky 300 LED lights. I have 2 rows of 3 plants with an oscillating fan at the back of the tent on one’s right when looking in the tent. I say this because the first plant to display this condition was the one closest to the fan. This has been happening over about a 6 - 8 week period.
For more detail:
Comment