Soil question

So I just did 4 Pandora Paradise seeds.. Was NOT impressed. Now I have 4 White Widow x Big Bud coming in.

And I was wondering if the fox farms soil is just bad without mixing it? I got less than 1 once per plant with my Pandora..
Should I mix the soil or what? I have alot of soil left over that's why I'm not looking up a recipes

ocean forest will feed your plants for about a month or so, then you should start supplementing

But you don't suggest adding anything for like.. Draining.. Or... Stuff like that

Look up subcools super soil if you're going organic.

Last year my outdoor soil mix was Fox Farm Ocean Forest, Sunshine #4, and bat guano . This year I am thinking of using Ocean Forest, Canna Coco, and bat guano