I have been growing 4 sativas from clones and 1 indica from seed. for about 7 weeks. Have them in the second bedroom. Was off to slow start, lights not strong enough. Plants growing faster now that have strong CFLs with hoods, and watering with llama manure tea. Growing in Miracle Grow potting mix. Plants are about two feeet tall but only Indica has opposite branches. Sativas all still producing alternating branches. (I changed to flowering lights on them a week ago.) Book says do not go to 12/12 until have opposite branches and signs of pre-flowering, esp showing sex. Mine are not. Obviously they are not ready, but they keep getting taller, and I will have to do something major on my ceiling to get the lights up higher. Will be massive undertaking for me that I would like to avoid. Have any suggestions for me? I don't want to do anything drastic (as a newbie) with the plants because I started out with 12 plants, but only have these 5 left, after trying to do things that I now think I should avoid until I have grown at least a couple of plants successfully the old-fashioned way. My attempts to lower Ph and "train" the plants to grow horizontally have resulted in disaster. Help! Help!