Ordered my Fox Farm 3 pack plz Assist Thx

Here is the run down , plant is bagseed im sure , was not a planned grow , outside grow , distilled bottle or Rain water . Has pre flowered for me last week im very lucky for it to be female . My questions are , once i get my fox farm nute 3 pack for soil , should i use all 3 or just certain ones now that its pre flowered ? Im a rookie at this so i might ask stupid questions now and then . I do as much reading as i can . I will also get a ph pen as to i read i will need to check ph lvl with these nute. So should i use all 3 or just bloom and grow >? Thx RIUer's

go to the foxfarm website and look at the feeding schedual.....it will give you all you need to know

hey tongbokes, here is a good link to someone elses post.
It should help. Skip the botanicare instructions and go to fox farm at the bottom
https://www.rollitup.org/newbie-central/87993-botanicare-dutch-master-fox-farm.html
Adding nutrients will severely raise/lower the ph of your water. So it will be necessary to get some sort of ph up/down and a good test kit. There are inexpensive chemical tests that are pretty accurate. The ph test pins can get pretty expensive. I would also recommend getting a TDS/EC meter.