400w hps/400w mh Church Grow wks 5/6 veg

2-bubblers/ 2 Vhurch seedlings 5 and 6 weeks old in a 4x4 tent- scrog baby.Screen needs to fill a little more before forcing flowering.Using GH Flora 3-part.PH is 5.6.Topping with R.O. water one day/ and 1/2 strength nutes the next.