the plants that r 6-7in have only been growing for 4 wks, the rest 6 wks(10-12 in). im only using 2 40w flour(didnt have enough for MH or HPS). have alum. foil surrounding plants. so i should wait until the rest reach about a ft? im jus a lil impatient i know the longer u wait the better, but im not lookin for huge monsters, jus a few decent size plants for personal use. i am growing Northern Lights #5 and True NL X 100% BB.....all advice is deeply appreciated.....