plant def? solution?

getting a really weird colour on the new growth any ideas? never grown this strain before... useing GHE lucus forumula

thanks

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too much P its locking out Mg, id add epson salt

could it be too much? I added cal mag in the last solution... there 3 weeks in veg @1.4ec just flushed for couple hours lowerd the ec and added a bit ofepeson salts to the solution.

my ph was on 5.5 for some time so to help absorb more mg I raised it to 5.9-6.0
am I on the ball so far ? never had mg lock before

thanks again

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Hi turk90,
Rather then a lockout, it could just be a simple deficiency. Marijuana needs lots of Mg and some strains, in particular "white" strains need even more. Are you using RO water? Might just be that you need to add more Mg because that certainly looks like a Mg deficiency.
JD

Coco or Soil? pH for Coco is best 5.9, pH for soil is best 6.4/6.5.

hexthat said:

too much P its locking out Mg, id add epson salt

Click to expand...

My charts do not show any Mg lockout from P excess...but your cure is correct.
JD

here is some more charts for you

Thanks Hexthat,
Indeed, in that top chart it looks like P can lockout almost anything. Seems though that this guy only has a single deficiency (Mg) and lockout deficiencies often come in a bundle...

Doesn't really matter since the solution is the same. Paying attention turk90? You might drop your nute level a bit along with the addition of MgSO4 to see if that helps.
JD

they look amazing today back on track... love you guys lol thanks for the charts

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hydro mate nft system

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cool, glad to hear

I used to use lucas formula, but now i make my own vegan organic teas cause well its cheap and you never have to pH