alex crouvier wrote:

What is the evidence of of calcium deficiency in your plants?
Damaged leaves with needle-sized holes on them? Crumpled
leaves? Rectangular holes in Vals?

In the FAQ:
http://www.thekrib.com/Plants/Fertil...eficiency.html

Another good reference:
http://www.csd.net/~cgadd/aqua/art_plant_nutrient.htm


If yes, how do you add calcium if your liquid fertilizer is lacking that?

In the FAQ:
http://www.thekrib.com/Plants/CO2/khgh.html