Nitrogen toxic? Please chime in

First i'd like to say that some of my pictures probably aren't very good was taking them in a hurry as the lights were on and i only wanted to turn them off temporarily. I'm not really new to growing but have yet to encounter this problem, This is a new strain for me (jack herrera got some clones from a buddy) but few of the leaves at the very top have curled in a bit and i was wondering what everybody thought.

I don't see the leaves as "dark green" even when i turned the light off they looked pretty normal to me and i dont have any light bleaching and the temps have only been about 74-78 light 65-70 lights off so i'm all ears if anybody has any advice they would like to give me

Soil: Fox Farm Ocean Forest
Lights: Gavita 100w de pro and some random 1k watt hood + digilux bulb
Nutes: Combination of Pure bloom nutes + fox farm solubles and Cal/mag
They are about 2 weeks into flowering


if any other information is needed please ask and i'll try to give as much as i can

Looks like the N claw to me lay off of the N for a lil they should work it out or you could possibly due a small flush but with your solubles in the soil could make it possibly worse.

botanist95 said:

Looks like the N claw to me lay off of the N for a lil they should work it out or you could possibly due a small flush but with your solubles in the soil could make it possibly worse.

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yea first thing im gonna do when i water them next time is a small flush

Thats wat i'd try bro but like i said watch em afterwards and see how she reacts cause it might make your solubles react more when u water so just keep an eye out

botanist95 said:

Thats wat i'd try bro but like i said watch em afterwards and see how she reacts cause it might make your solubles react more when u water so just keep an eye out

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the solubles didn't have any nitrogen in them so i don't think it will hurt

i only used beasty bloom if that information is needed

What is the PPM of your nutrient solution. N tox symptoms can occur when you overfeed. If you're overfeeding you'll get hit with salt buildup and lockout in early flower. (What's the PPM of your runoff?).

Looks like they are right on the verge. I wouldnt worry too much about flushing. Just plain water for a few waterings. Jack Herer is a sativa dominant strain. And like most sativa dom strains, they are not real heavy feeders. They tend to like most lighter feedings.

explosive82 said:

the solubles didn't have any nitrogen in them so i don't think it will hurt

i only used beasty bloom if that information is needed

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FF solubles are way too high in P and K for container plants. They are geared more for outdoor grows in mineralized soils where P and K are easily leached from the soil. Peat and coco based container grows do not leach P and K like native soils do.. Just stick with a 3-1-2 or so ratio from start too finish.

az2000 said:

What is the PPM of your nutrient solution. N tox symptoms can occur when you overfeed. If you're overfeeding you'll get hit with salt buildup and lockout in early flower. (What's the PPM of your runoff?).

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PPM is like 400-700 never been over 1k i don't think i usually give less than half of whats on the bottle

bump

It looks like more of an issue with heat stress and water pressure than too much N, almost like you ripped roots during a transplant.

Does kinda look like heat stress, the tops of the plants near the light look worse. Perhaps adjust for both potential issues.

churchhaze said:

It looks like more of an issue with heat stress and water pressure than too much N, almost like you ripped roots during a transplant.

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0 chance its this as they were transplanted like a month ago

Fease said:

Does kinda look like heat stress, the tops of the plants near the light look worse. Perhaps adjust for both potential issues.

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i rose the light up a few inches as well just in case it was this we will see although the clawing happened on a few lower leaves as well

Ya I saw that. Hope it clears up.

Well i just gave them a minor flush so we will see how they look in the next few days probably gonna lay off the nutes for the next week as well

will the leaves affect by this go back to normal? i assume not but just asking in case anybody knows

Be careful trying to do too much different stuff all at once this is why most of us say soil/less is way more forgiving and Happy Easter btw

too much different stuff? all i did was raise my lights a few inches and do a minor flush

The leaves might correct a little bit But generally leaf damage is permanent. Watch the new growth for health.