Now that ive been using it, noticing that it smells sweet, and seeing it brew all sorts of gunk in the res, ive looked closer:
Ca : 5%
Mg : 1%
Molassses : 10%
Cane Sugar : 2.5%
So im paying for sugar not calmag. What a joke.
If it makes ya feel better it has the same amount of ca and mg as regular cal/mag. It's designed to be hand watered in (hence the sugar), so be careful keeping it in your res. Will cause root rot if to much is added without enough aeration. I don't know what kind of stores you have over there, but you might try looking up a farm/fertilizer supply store. See if they sell calcium nitrate and magnesium sulfate (A.K.A. epsom salt). These are the raw ingredients for cal/mag. Can be had over here for very cheap. Comes in a powder form that is mixed just like any other powdered nute. Probably have to buy 25 lb of the cal/nit (bout 30-40 dollars here). Epsom salt you might find at the pharmacy/drug store in smaller quantities. One 25lb bag will last you years.