i know this may be a simple question but i checked the search option and couldnt really answer my question. i have two plants under flourescent lights and they are about 9-13" tall. i dont use any nutes just vitamin b in the water but have recently read something on the boards about it but now cant find it. i wanna start using some nutes now that its been 5-6 weeks and slow growth. i remember one being for vegetable stage and flower stage. any help please?