I used just about the exact same stuff in that order for many grows, all but the Floralicious.
I’ve slowly dropped things and i have not seen any difference in my grows at all. My pocket has seem a difference in money though 
and things are so easy now…
I no longer use silica blast, kool-bloom, or hydrogaurd.
Infact, for many grows now i use only GH trio or maxi series with h202 and calmag only if plants become deficient which isnt othen where GH has plenty of calcium and magnesium in it.
Follow along with my correct grow and see what I grow with just these…
That invention is open to all who want to follow along and see what comes from simplicity without and add ons.