Which one would you recommend for use with COCO and RO water (0ppm)? My understanding is
Technaflora Magical has the more bioavailable forms of calcium in their product whereas GH
Calimagic has a lower amount of Nitrogen as it's benefit. So which would/do you use and why?
This looks suspiciously like a cross-post from another weed board, so I will re-post my reply.
Magical is calcium nitrate, calcium chloride, magnesium nitrate, iron EDTA
CaliMagic is calcium carbonate, calcium nitrate, magnesium nitrate, iron DPTA
They are very similar.
CaliMagic uses carbonate to pull the pH up and has a cheaper iron source soluble at a narrow pH range. Magical uses calcium chloride for use as a better foliar and has a better iron source more suitable at a wider pH range.
For RO/soft water, I would prefer the following recipe for foliar or drench use in veg/transition:
Glow's Cal Mag
Cal-Mag (5 ml/l)
-Measure out 750 ml RO water
-Add 4 grams calcium chloride and stir until fully dissolved
-Add 6 grams magnesium nitrate and stir until fully dissolved
-Add 23 grams calcium nitrate and stir until fully dissolved
-Top up to 1 liter