Metallic Dark/Teal Leaves? (Copper Deficiency)
Copper issues cause dark, sometimes blue-green leaves and twisted tips.
Copper deficiency? Dark teal leaves, twisted tips—analyze fast.
Common Causes
- High pH
- Excess zinc/iron
- RO without micros
How to Tell Which One You Have
Darkening young leaves, occasional yellow/white tips, twisted edges.
FAQ
Micros fix?
Balanced micro with Cu; don’t overdo.
pH adjust?
Keep in range to improve Cu uptake.
Is this P deficiency?
P shows purpling + slow growth; Cu shows teal/dark + tip twist.