Vote Now 🏆 for the Grow Awards 2025!
Chat
Recommended

Are this brown pots a lack of potassium, and could it be caused by us giving to much Calmag?

bluecake
bluecakestarted grow question 8 months ago
We also discovered more brown spots on the leaves. You can see it on some of the pictures. We believe it might be a potassium deficiency, because we maybe added a bit too much calmag in the end? Todays feeding round we didn't add any calmag, and we hope it helps.
Open
Week 8
Feeding. Deficiences
likes
Answer
Todzilla
Todzillaanswered grow question 7 months ago
Probably a little nutrient lock out causing a calcium deficiency. IDK why you add cal mag for soil. Coco - yes, soil, no. Check and calibrate meter Check ppm /ec under 2.0 Check ph (soil 6.5) Calibrate those meters!
likes
Complain
Todzilla
Todzillaanswered grow question 7 months ago
Probably a little nutrient lock out causing a calcium deficiency. IDK why you add cal mag for soil. Coco - yes, soil, no. Check and calibrate meter Check ppm /ec under 2.0 Check ph (soil 6.5) Calibrate those meters!
likes
Complain
Todzilla
Todzillaanswered grow question 7 months ago
Probably a little nutrient lock out causing a calcium deficiency. IDK why you add cal mag for soil. Coco - yes, soil, no. Check and calibrate meter Check ppm /ec under 2.0 Check ph (soil 6.5) Calibrate those meters!
likes
Complain
Todzilla
Todzillaanswered grow question 7 months ago
Probably a little nutrient lock out causing a calcium deficiency. IDK why you add cal mag for soil. Coco - yes, soil, no. Check and calibrate meter Check ppm /ec under 2.0 Check ph (soil 6.5) Calibrate those meters!
likes
Complain
m0use
m0useanswered grow question 8 months ago
Potassium normally starts on the serrated edges of leaves not in the leaf itself. and it is not normally spotty like that. I think you initial assessment of Ca is correct, it will take time to recover but should stop progressing, The existing damage will not repair. https://420life.com/wp-content/uploads/2021/10/Marijuana-Leaf-Deficiency-Chart-scaled.jpg This chart can help. Good Luck!
2 likes
Complain
Similar Grow Questions