Hey all,

I'm running a foxfarm hydro system, and having some pretty big calcium deficency issues in the later weeks of veg.

Before anyone asks
ph = 6.2-6.4
TDS = 1000-1130ppm
Res temp = 71F
Ambient room temp = 69-71F

I'm hesitant to transfer over to flower cycle with a deficiency in progress so i'm trying to figure out what to use to best solve this issue so that i can get my move on.

My LGS (local grow shop) suggest i use Bontainicare Cal/Mag to solve the deficiency, but i'm hesitant as i don't really have a mag issue, or iron.

I have ready access to the following cal supplements and wonder what ya'll might recommend as my best option for use with the FoxFarm line. All listed below are powdered dry chem form, and i'm used to handling these kind of supplements in my reef expierences.

Calcium Chloride (CaCL2)
Calcium Nitrate (CaNO3) - i'm hesitant to use this, as i don't really need nitrogen - its also the Ca source in the Botanicare cal-mag
Calcium Sulfate (CaSO4)

any an all input would be appreciated.
plantone Reviewed by plantone on . FOxFarm Calcium issues Hey all, I'm running a foxfarm hydro system, and having some pretty big calcium deficency issues in the later weeks of veg. Before anyone asks ph = 6.2-6.4 TDS = 1000-1130ppm Res temp = 71F Ambient room temp = 69-71F Rating: 5