well i want to get them as big as possiable but some one told me that they grow only double in size in flowering so if i start flowering next week and the plants are only 13 inches then they will be 2'' 6' when they are ready. Is this right? And when do you have to start flowering? In a book i read it said 6 weeks of age, can you keep them in vegation stage for longer or will it hert the plants? And they are under cfls right now but next week they will be under a 250watt HPS and i feed them fox farms nutes and use super thrive every other watering. They are always keept in the best conditions (fans blowing on them , frsh air, and perfect temps).