I don't have any experience with this soil, but I do believe that any kind of soil benefits from Molasses, to increase microorganisms activity and for many other nutrients on molasses, including vitamins. Consider using it.
Also, don't lost your self on all these fertilizers out there. Try to stay on organics, that's better for the soil, and better for the plant.
Like amendments, etc.
And if considering nutes, try biobizz Grow and bloom only.