Photography Pretty leaf question

[Hypathetical Gardener]

This is on gsc. Its a lower/middle fan. Its in rinsed/recycled organic soil/coco blend wicking megacrop/bud explosion. I have recently added around 10 to 15 drops of calmag in the mix (i mix 2 liters at a time).
I use aged tap water. Roughly 7ish at the tap. I dont have or use any ph-ing equipment... So it really may be that... But is it something else specifically locked out or a ph issue? Or more calmag? Or is this normal leaf death because its 8 weeks old? This is my first experiment with not-organic inputs.

Fire one off for me [emoji108] HG

 

[LittleMT]

If this is the only leaf showing this then chances are it is a normal thing as this is a older leaf. My lowers tend to do this, I normally leave them on the plant until it dries and is crispy and falls on its own....If the plant is consuming nutes from the leaves (and I believe they do) then I want it to drink/eat/comsume all it can, as it would in nature. By removing these leaves you are removing a food source from the plant.

 

[Hypathetical Gardener]

If this is the only leaf showing this then chances are it is a normal thing as this is a older leaf. My lowers tend to do this, I normally leave them on the plant until it dries and is crispy and falls on its own....If the plant is consuming nutes from the leaves (and I believe they do) then I want it to drink/eat/comsume all it can, as it would in nature. By removing these leaves you are removing a food source from the plant.

Thank you. It is Definately not the only one. About 2/3s look like this. Ive added g o calmag but at 15ish drops /2 liters im not sure if im adding too little, too much, etc. Or if just ph locking out calmag or phos or etc

Fire one off for me [emoji108] HG