Sheriffatman
Cultivators Club
- Joined
- Jan 28, 2021
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- Currently Smoking
- Zkittlez OG
My starting water is 0.5, still add calmag?To me it appears to be a Calcium deficiency. If the rusty brown looking spots are on new leaves or leaves directly exposed to light it probably is calcium deficiency. A little Calmag in dosage specified on the bottle should clear it up within a week or so.