I have 5 beautiful females

they have been growing for about 2 months now, starting their 6th nold, each nold is about 1/2 inch apart. just wondering when would be a good time to start flowering. also have a very very bushy one that only stands about 4.5 inches and its also starting on its 6th nold. should i let this one get taller or should i let it stay bushy? also is topping good if they are already bushy? Hope to have pics up soon.

this question gets asked all the time , u can flower when ever u want to flower ... if u have limited space be aware that it will double in size , as for topping sure if u want it more bushy cut the main stem and it will focus on the branches