5 weeks in flower. Bubba,white widow,train wreck What nutes should I use now?

Here are my girls. this is my first grow and these girls are 5 weeks into flower. The first one is a white widow, the second one is a train wreck, they both were vegged for almost 7 weeks. The third is a bubba kush, it was olny vegged for 4 weeks, she looks healthy but she is small due to the short veg.. I know the leaves look a little yellow thats because I made a rookie mistake by taking out the "N" when I moved to flower, they are recovering nicly but I will not make that mistake again..

I would appriciate any comments and some advice on what kind of "BLOOM BUSTER" I should use during the last few weeks.. +rep for all advice..
Like I said the first 2 are white widow, the second 2 are train wreck, the third is a bubba... PEACE TO ALL HAPPY GROWING

those look absolutely exquisite for a first time my friend....what nutes have you given so far, i see the hydroton, are you in hydro? Anything with a higher P-K is going to be a bloom nute, i personally use the fox farms series and i tend to give a dose of N every now and then to keep the foliage nice and healthy as thats where the budding energy comes from..

goodluck to you, keep us posted!

Thanks for the kind words, I am always wondering if I am doing good. Its kinda nice to come here and share you secret, Ya know? Anyway I have been using General hydroponic nutes, the Flora seires, its a 3 part that's pretty darn easy to use.. I vegged them in a 6" rockwool cube for 7 weeks and then transfered them into the pots filled with the hydroton.. My wife is home everyday so she is able to water and take care of them when I am at work so no dealing with pumps,hose's and stuff.. I am wondering if I should add somekind of carb in to the last couple of weeks, I am kinda scared to change anything because I have some pretty good results already...
PEACE