btw i gave to brands as an example... even if you go with either of those, buy a generic epsom and calcim nitrate component... save money .... The shady ones put the micronutes into the calcium nitrate, which forces you to buy their bloated calcium nitrate... jacks doesn't do that anymore and i don't believe masterblend does... .but, at least one of the two price gougers do.. pretty certain ghe does and floraflex likely does too, because it's "smart business" to be shitty like that.