I wouldn't use a bloom nutrient on vegetative plants.

You're going to need to replant those before flowering, I usually replant them into bigger pots 1 week before I plan on flowering. I've never had a problem determining gender at that point.
katyowns Reviewed by katyowns on . Flowering and Transplanting Q's Hi, Started my first grow on may 1st and I have a question about flowering - but a quick rundown first. Long time smoker, and looking forward to smoking some quality homegrown. I started 18 seeds with some other garden plants under 4x40 tubes. I planted 11 Endless Sky and 7 Sweet105 from drgreenthumb.com (quick delivery and all planted seeds sprouted). 3 weeks after planting I transplanted into half gallon pots and moved under a 600w MH bulb in a rough attempt at a grow room. Rating: 5