Don't bother with foliar!? I foliar feed all the time. Im running hydro with a 50 gallon rez so thats ALoT of cash plus, sounds like it doest play nice with thr rez anyways. No airstone? Fuck that.
I foliar fed twice a week with liquid light and got excellent results. I'm now trying out liquid karma and molasses. It's very amusing to me that nobody foliar feeds yet dumPs tons of sugars in their water mix when the ability of roots to intake sugars is extremely limited. Stomata however can absorb all kinds of sugars. The more I read about snow storm, the more it seems that those that have done side by side comparisons say it does little to nothing.