Here is the deal dude. I've somewhat mastered FFOF so if you wish to take some advice here it is.
Do not use FFOF in your starter pot.
I use 100% FoxFarms Light Warrior, have a smaller bag to fill my solo cups. Germinated seed in that for 5-10 days, then transplant into a pot about 4-5 times larger, I go into a 5x5x6.5" square container. 50% FFOF-50% Light Warrior. Maybe add 10% perlite if you wish.
Then my second and final transplant is into my 5 gallon fabric pots. In those I use 75% FFOF-15% perlite-10% worm castings. Now just plain 100% FFOF with or without perlite is fine, but I recommend 10-20% perlite for sure to help with aeration and drainage.
No adding any nutrients until you hit about day 40 if you end up transplanting similarly and vegging that long.
A little grow nutes near end of veg/early flower and it's all bloom from there unless they begin to yellow too early in flower then you would need to fed grow again by week 4.
A MUST-You must add 1-2 TBS(tablespoons) of dolomite lime per one gallon of soil in the final pot. This will help with cal and mag, and pH stability. Being the lime doesn't kick in for 3-4 weeks and FFOF has enough eggshells and dolomite to keep you good in the smaller pots no need to add it until your final pot.
I would use nothing but FFOF in my indoor grows. Until you get some grows under your belt and can experiment with mixing your own soil if you choose to do so in the future, stick with FFOF.
I have no idea what nute system you will eventually use but I just used the Fox Farm kangaroots and Microbe along with a separate root enhancer called Great White(there are many brands) this current grow at about day 40 and it helped bigtime. I would also suggest using at least the basic FoxFarm nute system of Big Grow, Big Bloom and Tiger Bloom at a minimum, adding the three pack of solubles(Open Sesame-Beastie Bloomz and ChaChing) to this lineup will get you some big frosty buds. But the basic grow-big bloom and tiger is ok to.
I also suggest, and I'm suggesting a lot, is molasses. I use Earth Juice Hi-Brix but any unsulfured molasses will do. Fed from week 3-4 flower at 1-2 tsp per gallon of water/fed and end about a week before harvest at 1-2 TBS per gallon of water/fed. Fed every time you water/fed.
So much to learn and do.
Never water too often, never overnute. Start slow. Have fun.