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Slight nute burn?

mokel

Active Member
Hey guys,
this is my first plant, so i'm might be a little but worried too much, but i want to improve as much possible so any advice and comments are welcome :)

it's a northern lights #5 x haze from sensiseeds put into a rock-wool cube 2.5 weeks ago and is now in a ghe aquafarm with dwc mod.
the lady got fimmed (at least i hope so ) 2 days ago and seems doing well :circle-of-love:

only the first and second set of leaves are looking kinda strange, like i had/have some nute issues, dunno for sure ...
actual ec is 0.45, ph varies between 5.7-6.3
i'm using hesi for hydro and RO water with 0.025 ec.

Top:
top76.JPG


Side:
side64.JPG


First Leaf - Single Leaf:
leaf114.JPG


Second Leafes - Tri-Leaf
leaf211.JPG


Third Set - Only tip this time
leaf310.JPG



to much nutes for the first days in her life ?
seems healthy to me in any other means as far as i can tell.

Thanks for any help :thanks:
 

Guievonat

New Member
Plants are looking fine but maybe you are right with nutrient burn.:50:
 

Emilya

Member of the Month: Mar 2019 - Grow Journal of the Month: Jan 2020, Aug 2021
what is your pH?

oops... just saw it... yep, that looks ok... I agree with the AP'er, back off the nutes just a bit... but looks like something might be missing too... dont like the looks of those lower fans
 

Emilya

Member of the Month: Mar 2019 - Grow Journal of the Month: Jan 2020, Aug 2021
it might not be burn... you might need some cal-mag with that RO water. Magnesium deficiency is definitely being suspected here.

Emmie
 

mokel

Active Member
ok, i'll definitely take that into consideration, still got some Epsom salt stored if the new leafs start to yellow ...
could it be, because of the lack of nutes the first days, that only the first and second set of leaves are affected ? normally hesi hydro grow should give enough calcium and magnesium with RO water, referring to a support mail from hesi where that question got issued and those are listed on the contents of the hesi nutes, too ...

thanks again, i'll keep an closer eye on mag deficiency as well :thanks:
 

mokel

Active Member
ok, i read some stuff about mag deficiency and got myself some Sensi Cal-Mag Xtra which i started to use as foliage spray with 2ml per liter as in the description ...

when using it with RO water, it increases the ec to 0.7 without any other nutes, so i decided to try it as foliar spray first to cover the urgent problems .... before messing with the entire reservoir.

when things start to get less 'yellow' i might reduce some nutes to make room for calmag, till then it's time for a little shower xD
 

mokel

Active Member
heya,
still looking not nice, some leaves had worsened their condition, though generally plant seems doing fine.
applying calmag as foilage spray several times a day and at the end of the day cicle when lights go down, sometimes with clear water before to prevent any surface covering on the leaves from not absorbed nutes.
should i increase foilage dosis or intervals ?!? additionally i'm going to change water tomorrow as i found some clumped not slimy stuff in the reservoir, which i think could be clogged nutes ....... then adding calmag to the fresh nutes as well. :D

the affected leaves got some bleaching ongoing, turning them yellow/white and some rusty spots appeared on the third set of leaves which i think could be another proof for magnesium deficiency.


will of course provide further pics and intel whether things get better or worse.

some new pics

Top:
top_22.JPG


First Leaf - not looking good at all ...
leaf1_2.JPG


Second Leafs - starts like the first one did ...
leaf2_2.JPG


Third Set - now got some Rusty spots ....
leaf3_3.JPG
leaf3_2.JPG
 

Emilya

Member of the Month: Mar 2019 - Grow Journal of the Month: Jan 2020, Aug 2021
you might want to add it to the mix now that you have it figured out
 

BuddroGreen

New Member
I would look at the drip ring being too high off the hydroton and splashing the leaves. I have grown in GH water farms and this happens if the nutrient solution is splashing the leaves, get that drip ring flat on the hydroton. And maybe a little hot on the nutrient solution giving some tip discoloration.
 

mokel

Active Member
first pictures from 08-11 were made with 0.4 ec. at those pics from 10-11 she's already at 1.4 ec (since 4 days now, no burned tips or anything suspicious not already present in the first pictures showing yet, so i think she loves it as she's going crazy right now .....

131112.jpg


1311s.jpg



no further leave bleaching occurred, symptoms stopped spreading and the rust patches stabilized, she started to be happy again, no burnt tips, yet :)

i cut off the lowest leaves 3 days ago, as they withered they started drooping down ... and then i had BuddoGreens splashing problems, so before they started to rot i removed them.

so, my conclusion in this case:
serious problem of to long to careful with nutes and calmag deficiency (maybe because to low ec, maybe because hesi has not enough mag in their nutes for RO water despite claiming otherwise ... dunno, i bought some calmag extra before trying to increase hesi dosage) and now it seems fixed.


thanks for the help everyone :goodjob:


edit:
don't mention the holes in the upper leaves until you wanna hear how i nearly got a heart attack when i cut my plant the first time, think i caused more stress to me then to her .... xD
 
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