Get some transplant nutes something with B-1.
And if you want to find out the sex of your plants ,I HAVE A METHOD THAT WORKS WELL.All you do is cut the light time down on one branch using a papertowel roll a little tape and tin foil.You make a branch cover and sli[p it on a lower branch for 12 hours a day.After a week or so it will show it's sex on that branch only.Also this pushes out some pre flowers on the whole plant sometimes.Put it back into veg or cut that branch off cause it probably wont recover...so use a little unhealthy bottom branch incase it doesn't recover...but this saves alot of time and space.I did it outside last year.