The Fox Farm schedule assumes feeding twice a week and assumes an overall volume of one gallon being mixed up PER FEED...(as it correlates with the volumes of nutes listed on the schedule)
So I found that computing for the week was helpful. How many times in a week are you going to water? Are you going to feed nutes every OTHER watering?
I figure those quantities and time frames out, and take a week's worth of nute requirements and divide them by how many times I plan to feed nutes for the week, as well as how many ml's
I'm mixing up (compared to a gallon).
With autos, it's best to be running between 1/4 strength and 1/2 strength concentrations so you have to factor that in as well.
Go to the fox farm website for the schedule for your medium...they have hydro and soil schedules
You also need to think about Cal Mag and Carb/mineral additions too. I found that Cal Mag was a necessary regular regimen item...on nute days and non-nute days...
I also fed molasses almost the entire time on "off days"
The Big Bloom is not a bloom cycle nute...it's more of a general maintenance thing (IMHO) Bat Guano and Earth Worm Castings. It'll be good (and called for) throughout the grow.
Your Grow Big will be your primary Veg nute and Tiger Bloom will be your primary Bloom nute. A flush in the middle of the grow with either plain water or FF Sledgehammer
is a good idea as these nutes are synth nutes and tend to generate salt build-up that you will want to clear out.
I tend to believe that Grow Big can be pulled entirely after the halfway point even though the schedule calls for it's continued use.
Tiger Bloom is pretty hot so it's best to stay on the low end of concentration %'s on that (IMHO) but that depends on the strain and how much it can handle.
My 2 cents