Is this nutients burn or whats happening?

Setup:

Grow tent 1,5m2
600w HPS
Light Mix Soil
GHE Flora Serie
15L pots

Week 6 Flower
Strains; Skywalker x1, Himalayan Kush x1, Unknown x7
(some bag seeds i got from a friend)

Ive resently had some poblems with some of my ladys. It stated with a few, now it has spread to all the unkown strains plants (Skywalker and Himalayan Kush are healthy). I thought it was toxic salt build up but ive flushed the plants many times.

Can it be nutrient burn or something else ?

One idea is that I was forced to use LightMix soil (store was out of coco) with GHE Flora serie.

Anyway, im on flower day 45 (6 weeks,3days), I dont know for sertan how long the unknows should flower but maybe i should start to the finishing act with water and Ripen.

Looks like it could be nute burn.... Not sure.... Fan leaves tend to do wierd things towards the later stages of flowering. Give plain water and lighter nutes when feeding.... If buds are growing, don't worry too much about it. It's when your leaves are wilted and plants falling over that you really want to worry. I think your ok....

CGI::::::

Try crushing up a few calcium/mag/zinc vitamins and mix them in with your water.

Is this happening to all youir leaves ?? or just tthe odd 1 or 2 ?

Quote:

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Originally Posted by CanGroIt

Looks like it could be nute burn.... Not sure.... Fan leaves tend to do wierd things towards the later stages of flowering. Give plain water and lighter nutes when feeding.... If buds are growing, don't worry too much about it. It's when your leaves are wilted and plants falling over that you really want to worry. I think your ok....

CGI::::::

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Looks like the buds has stoped growing as well...

Quote:

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Originally Posted by BUDEZZ

Is this happening to all youir leaves ?? or just tthe odd 1 or 2 ?

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As for now, it looks like its only the top fan leaves, and th leaves on the main colas

Purple Daddy:

I dont have access to that right now (Im broke), dont even know where to get it. Do i get it at my grow shop, lifestyle store or farmasy?

Quote:

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Originally Posted by CanGroIt

Looks like it could be nute burn.... Not sure.... Fan leaves tend to do wierd things towards the later stages of flowering. Give plain water and lighter nutes when feeding.... If buds are growing, don't worry too much about it. It's when your leaves are wilted and plants falling over that you really want to worry. I think your ok....

CGI::::::

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As stated, Im using GHE flora serie. If its nut burn, you say i shoud use plain water and lighter nutes. Should I use 10%, 50%, 80% of the nutes recomended on my feeding chart?

FloraGrow 3-1-7 (recomended, 5ml/10l at this stage)
FloraMicro 5-0-1 (recomended, 10ml/10l at this stage)
FloraBloom 0-5-4 (recomended, 15ml/10l at this stage)

I Also have to add that this feeding chart is for Hydro/Coco and Im using light-mix. I belive light mix has very low NPK. I will call the store later and ask about the NPK.

i wouldnt start panicking. what kind of water are you using? cal and mag might be in order...however you mentioned nothing of ph. that could be your problem and your plants are not absorbing what they need due to ph issues. you should about 5.5 in coco(from my understanding. try to find info on here for your medium. flushing may have compounded your problems as now they are not getting any nutes. go to floras website and look for a ph/nute chart, it may help out. take pics under blue spectrum as hps will hide things from us, sunlight is even better. yellowing is normal, but brown/bronze blotches and intraveinal discoloring is not. with the info you provided it could be anything. start with ph, though.

MEDEDCANNABIS: Ph is always beteween 5,5-6,5. Dunno if thats good with soil grow. My next setting is gonna be on coco anyway.

Ive talked to the growshop, he tells me that LightMix has some nutes in it, so I think Ive overfeeded them.

But, I`ll learn to next time.