Leew421
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First, zinc is what helps make the leaves green and that is hardly ever an issue. Second, I would recommend you separate the magnesium and calcium. Use Epsom salt and get fully chelated biomin calcium. It's on Amazon. 1 tsp epsom per gallon, 5-10ml calcium per gallon. If you use molasses skip the epsom salt. I stopped using calmag a long time ago and have had great results in being able to change the dose of either elements when needed.