Hey guys not an experienced grower here although my roommate is. I want to do two strains in one room (4x4x7) Super Lemon Haze, and White Widow based on the fact that their flower time is similar. Is this possible, if so at what point should I flower them to maximize my space? I want to use 5 gallon buckets, but if I flower to late they may grow too much, I need 18 inches from the light 1000w hps so I will assume 2 feet is out of the picture for height based on that and maybe another foot for the pots, so the plants can only get 4 feet tall, probably more if I don't fill the buckets all the way. Which will grow taller and at what height should I flower them? Thanks for any input.