Though it has nutes, this does not mean you dont apply nutes with waterings. Water with plain RO water for 2 weeks, then apply your bloom nutes. Generally before the bloom transplant, the soil contains enough nutes for the veg phase, though you may add some N depending on your experience with the strain. But be careful playing with N, as it is easy to toxify your plant with excess N. Incase of N overdose (extremely dark green, bordering on black), flush for a week, as N is mobile and the plant will feed off the excess stored in its tissues.