What's causing these spots on my leaves?

[Maria0910]

So we have been growing for a couple of years. We had some plants slightly overcrowded and got another tent. We have one plant that droops thirsty droops when too wet. Noticed some rust on a couple leaves. We ph our water, using quality nutrients, other plants are thriving. Did turn down lights in case of light burn. Just want input on what might be causing this and how to correct

 

[LoveGrowingIt]

We ph our water

What's the pH?

 

[HerbalEdu]

nutrient needs may vary significantly from one phenotypes to another. That's not unusual.

not sure at all but may be both Calcium (small brown dot) and magnesium (interveinal discoloration) deficiencies
(but could be a few other thing i think)

 

[HerbalEdu]

(but could be a few other thing i think)

(for exemple ph and/or nutrient lockout can sometime result in the same symptoms as some deficiencies or excess)

 

[ArtfulCodger]

It's a balancing act, but I think you were right to turn the lights down. Canoe-ing, interveinal yellowing, and purpling on the leaf veins and petioles all suggest to me that your light was outrunning your nutes/uptake. The dark lesions could be a few things, including calcium.

 

[Silent.Moine82]

So we have been growing for a couple of years. We had some plants slightly overcrowded and got another tent. We have one plant that droops thirsty droops when too wet. Noticed some rust on a couple leaves. We ph our water, using quality nutrients, other plants are thriving. Did turn down lights in case of light burn. Just want input on what might be causing this and how to correctView attachment 2462641

I read an article this afternoon, I don't remember where saying that sometimes the light may cause that if you wet the leaves, but could be a deficiency as well. I'm no pro yet, but I hope I could help find a solution.

 

[Maria0910]

It's a balancing act, but I think you were right to turn the lights down. Canoe-ing, interveinal yellowing, and purpling on the leaf veins and petioles all suggest to me that your light was outrunning your nutes/uptake. The dark lesions could be a few things, including calcium.

Yeah we added cal mag to our water. Hopefully she will heal up!

 

[Maria0910]

nutrient needs may vary significantly from one phenotypes to another. That's not unusual.

not sure at all but may be both Calcium (small brown dot) and magnesium (interveinal discoloration) deficiencies
(but could be a few other thing i think)

We did start adding cal mag to our water and have her a trim. Hopefully she'll perk up soon!

 

[TannedViking]