Light bleach or Heat burn?

Looking for confirmation on what this problem is.



plant is in veg half way between a 600w and 400w MH, the part shown however is the furthest from the lights, and the rest of the plant looks mostly fine so it doesnt make sense to me.

- growing in coir using DM gold
- 68-77 degrees
- 50-60% humidity

thanks!

could be iron deficiency, check out http://www.icmag.com/ic/showthread.php?t=11688
thats what i think it resembles, im far from a master at this, but thats my vote

It very well could be I must have skipped over that one yesterday (was looking at the chart on my phone)

underfeed does go along with a couple of my other plants looking like N and K deficiency.

Guess ill give em a boost today and report back later, I know these super lemon haze like to eat but damn! already at like 1250 ppm

thanks for the reply

if your at 1250ppm then it is not under feeding. If anything you need to drop the ppms some.

normally I would think the same but with these nutes and strain it has handled upwards of 1600 before, my grand daddy purps use less though. maybe I will just feed more to one and less to another and see what happens