Possible Nitrogen Toxicity, or something else?

This Pheno Chocolope female is grown in Sunshine Mix 4 under a Sunblaze T5 LED and using Remo Nutrients. Currently at week 5 of flower starting today. The leaves started looking dark at first and are now doing this coloring. The larger Chocolope is starting to show on one or two leaves as well, but nowhere near as bad as this one. This girl has it all over and it happened fast. Has anyone experienced this?

Edit: PH Balanced water between 6.0 and 6.6. I do not have a meter to check ppm.

2 answers1 reply

Comments (3)

nategrows

Aug 28, 2020

Needs cal mag buddy, that’s her only way of getting it is cannibalizing on of her least useful leafs ie the bottom ones.

Mr. Grow It

Aug 03, 2020

From just looking at it, it looks like magnesium deficiency. Do you use a CalMag additive?

More info on magnesium deficiency:

https://www.mrgrowit.com/post/2017/11/14/magnesium-deficiency-in-cannabis-plants

Dale

Aug 03, 2020

Replying to

I was reading that yesterday actually. I try to read and watch as much as possible before posting on here. Between you, the boys over at cannabis lifestyle tv and Remo, there's a ton of great resources.

I am using the MagnifiCal that's in my feeding regime from Remo Nutrients.

And I've been using the Fearless Bloom, Rock Hard and Sticky Icky that a buddy gave me samples of from the hydro store. I've been adding extremely small amounts of each of these three.

This is what the leaves looked like just before they started getting the lighter color in the middle

Thanks @Mr. Grow It Your time is greatly appreciated