I would not know where to start with a CaCo3 number that high. I would be inclined to work with a water filter.
Hey Fresh Starts.
I've been reading a lot about nutrient formulation and i think i've found a suitable formula for my water.
The main issue with CaCO3 is that it raises water alkalinity (pH) so i have to work with acid to lower the pH.
So thanks to Alkcalc i know the ppm of N i add to the solution (IE with Nitric acid) to lower the pH, which in my case is about 40ppm of N (with Nitric Acid), so i put the 40ppm of N in the water parameter window in Hydrobuddy (or i subtract 40ppm of N from the target concentration) and try to reach the desired ppm level of the other elements.
My first formulation attempt will be fatman's bloom recirculation formula but this formula (with the minerals listed by fatman) is low on S on my water so i had to add a little of ammonium sulphate to pump up S and magnesium nitrate to balance the formula.
At the end my solution (fatman's bloom recirculation at 1/3 strenght) is:
NO3- : 79
NH4+ : 8
P : 27
K : 97
Mg : 31
Ca : 87
S : 33
Fe : 3
Zn: 2
B : 2
Mn : 2
Cu : 0.5
Mo : 0.03
Na : 0.014
Cl : 13.9
I've been struggling to find all the required elements in the EU but after a lot of googling i've found this great german store
en.deutsche-phytoengineering.de Hope it helps european people
I found everything in that store (apart from acids which i had to buy on ebay on a restauration store lol) and i ended up buying other minerals currently i don't use, but who knows... :)