What happend now?

[zaQ]

Gave all my plants a shot of dolomite lime to prevent if all pots will drop in ph.. Will cross my fingers and update in a week or two

 

[Hugo]

Ok.

I'm curious about it

 

[Hugo]

Just to clear things out, are you still giving full dose of sensi and cal/mag?

 

[agito]

Also Ive never seen a plant do well on a full strength dose of A+B fert that a bit gun hoe, You first picture was not really a mag issue it was PH lockout which called muti deficiency (which i think you know now)

 

[MRcaponebmx]

I have 12 plants going right now and only my one pink kush is doing this same thing im scard now!!

 

[Hugo]

Definitely not a Mg issue. It looks like Ca deficiency but it's strange with the cal/mag being supplied.

Also Ive never seen a plant do well on a full strength dose of A+B fert that a bit gun hoe, You first picture was not really a mag issue it was PH lockout which called muti deficiency (which i think you know now)

 

[agito]

Definitely not a Mg issue. It looks like Ca deficiency but it's strange with the cal/mag being supplied.

tried to pm hugo but ur inbox is full
you can post it if you like ive never seen a plant in soil do well at 5.8 ever if it was a soiless mix that would be another story. ive locked out hydro ferts at 6.5 and sub 5.3 and they where cheleated as well (canna aqua growth tech, green dream, vita link but never used sensi though in fairness) thanks for the consideration on the PM i also think overfert is a issue here as well

 

[Hugo]

My bad. It's emptied now

Ok, I understand. So it means that under some ranges of pH the chelates destabilize. I was doing some more searching around and it meets up with what you're saying (I knew that .

Stability of Chelates
The strength of the chemical bond between the ligand and the metal ion depends on the type of ligand, the type of ion and the pH. The stronger the bond, the more stable the metallic ion and each chelate has a characteristic "stability diagram".

Here are examples for stability diagrams for a Copper chelate and a Zinc chelate. It is obvious that in specific pH levels, the complexes are not stable, i.e. the ligand tends to separate from the metal ion.



When other positively charged minerals, such as Calcium and Magnesium, are present in high concentrations, they compete with the metal ion for binding to the ligand. The metal ion might then be replaced, making the chelate ineffective in delivering the metal ion to the plant.

So... Glad i learned something



Green Karma sent your way!

 

[agito]

not to mention the base nutrient in the potting mix as well lol

 

[Hugo]

My :

Your plant is suffering from Nitrate over-fertilization and a deficiency of one or more of this metalic micro nutrients: Iron, Manganese, Zinc or Copper.

Please go here for more important information and diagnosis: https://www.autoflower.org/f7/basic-deficiencies-list-11.html

Solution IMO is to back off on Cal/Mag, and give 1/2 dosage of grow next feeding. If necessary complement later with a foliar feed. Good call on dolomite lime prevention!

"Less is more"