Fox Farm's Marine Cuisine

I plan on adding this to my soil mix before I plant (outdoor grow). Overall I will need about 15-16 Cubic feet of soil. I'm planning on 11.5 cubic feet of Promix Bx and about 4 cubic feet of extra perlite to the mix. Overall that comes out to 115 gallons of soil mix. On Fox Farm's website they say 1 tablespoon per gallon of soil. Is this too much? I know Fox Farms is some pretty strong stuff so I don't want to go overboard.

Be carefull with the amount you use! I learned the hard way. That stuff says a Tbl spoon for a reason. If you want and feel like they didnt suffer, add a little after week 3 again. And I mean half of what the ask for originally. Trust me, you will like the results. Then post the results, but more like brag!