Yo dude dont use merical grow full of chemicals for the best tasting buds use organic nuts... nice plants you should replant them in bigger pots they look pretty small what size are they?? your plants will double in size during flowering if there all females man your going to get a big yeild...move your lights closer around 2 to 3 inch from plants this reduces stretch..your lights look pretty far to me. add more lights maby 3 more the more the bigger the buds..you should put sides and a top around the plants paint them white it will reflect alot of light its cheap i built my box for 40euro got the panals in hardware store.. important if your in 12/12 the dark period cant be interuped if any light at all hits the plant during the dark period even for a second it will stun the plant and turn it hermie or male happened me before and ya defantly dont want that. the whloe grow would be a complete wast of time.. also in the pics i notice your plants seem to be eaten by some kind of insect the leaves are damaged.. i cant tell from your pic if its male, female or hermie just look up the net for picts of females..males and hermies(hermie is a plant that has both male and female flowers)but if your plants have hairs cumin out of the ball shapes there girls..males look like little bunches of grapes with no hairs happy growing:hippy: