Whats up.!

I seem to have yellowing leaves and small brown spots on them, someone had told me how it could be CA deficioncy is this correct? and how and what can I use to put calcuim into my water in the hydro system because I do not think my nutrients have calcium in them, I was a soil grower before, this is my first hydro?
dougefresh Reviewed by dougefresh on . I think my plant has calcium deficiancy? Whats up.! I seem to have yellowing leaves and small brown spots on them, someone had told me how it could be CA deficioncy is this correct? and how and what can I use to put calcuim into my water in the hydro system because I do not think my nutrients have calcium in them, I was a soil grower before, this is my first hydro? Rating: 5