"vegatables" or hash? reason me wanting you to point that out specificaly is that veg and hash are grown very different. there may be high levels of Nitrogen in the mix, also if its for actual veg you will proberly find to much Phosphorus. regardless of it being 'trace mix'.
Ide be wary.. can you get hold of the content so then maybe we could compare CSM+B with what your intending to get. hydroponic growing is normaly done as im sure you know by the lights as well as PMDD, useing different colour temps to stimulate different seasons.. so then changing levels of macros and micros for that change.. less k2so4 is needed in veg stage than in flowering stage, while k2so4 is safe.. its levels may not be, like many other elements that will make the mix.
btw dont be shy if its for growing MJ, its botany in its own right is it not? and also as intricate as the planted aquarium. but the aquarium products have normaly been manufactured with the fish in mind.. especially aquatic plants.
heres the details on the CSM+B, B being the boron which will proberly be present in the mix your asking about.
it doesent state how much boron is in the CSM on the pack unfortunatly.. but that should give u an idea of the sort of 'trace mix' your looking for. and the percents.
try emailing them they can proberly go and look up the details on the mix and report them back to you.