Description Calcium Bag: Available as 1kg This product is provided as an additive in situations in which the amount of calcium present in the water is below the recommended levels. Very soluble, easy to use, quickly assimilated. Chelated Calcium – EDTA is a stable product that does not interact with other elements. Strengthens cell membrane and cell walls to protect from pests and insect attacks. Presented in a powder form, it is very soluble in water. Ca2+ ion is protected by EDTA. Minimum effort and very easy to use. Enhances nutrient transportation. Accelerates cell division and root extension. It does not contain Chlorine. It?s compatible with all kinds of fertilizers. It is perfect to solve a lack of Calcium. RECOMMENDATIONS MIXING: when added to water make sure to start mixing immediately. RO, RAINWATER OR ANY WATER WITH EC 0.0: Because these kinds of water don?t have the necessary amount of either Calcium or Magnesium, it is necessary to use Calcium additive when used with any Powder Feeding products. For your convenience Magnesium is included in Powder Feeding. Also remember that most tap water already has enough Calcium. DILUTION PROPORTIONS: WATER HARDNESS PPM CaCO2 Ca-CHELATE Very Soft <70 ppm 0.13 – 0.11 ozUS gal 1.0 – 0.8 g/L Soft 70-140 ppm 0.11 – 0.07 ozUS gal 0.8 – 0.5 g/L Medium 140-220 ppm 0.07 – 0.01 ozUS gal 0.5 – 0.1 g/L Hard/Very Hard >220 ppm NONE NONE EC 0.0 Ca-CHELATE Seedlings 0.04 ozUS gal 0.3 g/L Growth 0.11 ozUS gal 0.8 – 1.0 g/L Flowering 0.13 ozUS gal 1.0 g/L Last 3 weeks 0.20 ozUS gal 1.5?g/L