Seems like your planning a grow around fertilizer, hopefully not because if so its a bad way to start.
I gave up growing soil for hydro few yrs back but before i switched i ran soil 20 plus yrs, in soil there is absolutely no need or quality based reason to use any specialty ferts, especially the biggest shell game manufacturer in the business of fertilizer.
Get some promix soil & add a very small amount of perlite, roughly 5%, then for ferrtilizer go to a meijers store & buy peters brand or jacks classic ,both are top of the line fertilizers without all the gimmicky names or price gouging fox farm is notorious for.
Fox Farm products are all way overpriced for what they offer, marketing geniuses they are & nothing more.