Weird patchy leaves

One of my plants has this patchy yellowy greeness and i cant put my finger on it, root rot? I have this pic from icmag and this is exactly what i have and heres pic of roots. Never encountered this before. Ph consistent between 5.8-6.4. Using lucas's formula, flowering now beginning third week from 12/12 initiation. 2000w hps in total. Rockwool cubes. Watering from 2-4 times a day at 200-400ml a time.

Now have spotted this on a second of my eight plants, i am severely concerned about this, as cannot find anything about it!

Sorry but gonna have to bump this

To anyone that wants to know, apparently this is variegated cannabis.. In short, a genetic mutation.

I'm not to sure bro but a guess with this chart would say magnesium deficiency try some Epsom salts 1ts per gallon

youngg said:

I'm not to sure bro but a guess with this chart would say magnesium deficiency try some Epsom salts 1ts per gallon

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Appreciate the reply mate, it turned out to be variegation thank you though!

pic of whole plant would help...most likely this is a cal/mag def

Diabolical666 said:

pic of whole plant would help...most likely this is a cal/mag def

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Sure, i mean i could be completely wrong but i feel this is more genetic than a def, the rest of the leaves are fine its just odd few.. Dont get me wrong tho, its more than likely i am wrong. Apologies for not so amazing pics, it's almost midnight where i am