DowNwithDirT
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General Hydroponics ca/mg supplement is calimagic.... and yes it is calcium carbonate, but also has mag nitrate. Saying that calimagic doesn't register on a ppm meter is inaccurate, as 5 ml per gal is around 400ppm. Yes, this is not calcium carbonate reading, but it is mag nitrate and iron.
Calcium carbonate in coco is no bueno........it raises the ph and overtime it will get out of range, due to the fact coco has a high starting ph. Calcium sulfate(gypsum) is a better choice for coco. Supplementing coco before transplant is choice.
Calcium carbonate is good for peat.
Calcium carbonate in coco is no bueno........it raises the ph and overtime it will get out of range, due to the fact coco has a high starting ph. Calcium sulfate(gypsum) is a better choice for coco. Supplementing coco before transplant is choice.
Calcium carbonate is good for peat.