Reverse Osmosis Calcium Supplement for Tomatoes
I'm using RO water b/c my tap water here on the coast is no good.
I do not want to use half tap half ro water.
I plan on using Hydro-Gardens 3 part nutrient solution.
To make 100 gallons of nutrient the following recipe is used:
1/2 lb of chem grow 4-18-38
1/2 lb calcium nitrate
1/4 lb magnesium sulfate
My question is, do I have to add calcium in the form of calcium chloride or is there another way? Its all rather confusing. I used to use general hydroponics Floramato but found it unsatisfactory so I'm going with the Chem Gro this year.