I buffered my coco twice with camag+ which is calcium carbonate in hippy voodoo sauce now I'm gonna do it again with caliMagic which is calcium nitrate and magnesium nitrate. And after this run I'm going straight to bulk calcium nitrate (18$ 5 lbs,) and epsom salt(magnesium sulfate) like a boss...
I can't find a real answer. I have a bottle of general organics calmg+ (gh organic line) which uses calcium carbonate and magnesium carbonate. It's very acidic even though it's cal carb the same thing as tums yes...but also your bones, egg shells,mollusk shells etc. I ph' d the solution to 6.5...