CMX is a calcium /magnesium additive used for preventing nutrient deficiencies.
As an added bonus CMX also contains the following trace elements;
- Iron (Fe)
- Copper (Cu)
- Manganese (Mn)
- Zinc (Zn)
- Molybdenum (Mo)
- Boron
CMX contains 6% calcium, 2% magnesium, 0.2% iron EDDHA (NPK 4-0-0) plus all of the other trace element (copper, zinc and manganese as EDTA, molybdenum and boron).