I have 5 blue mammoth autos growing under a 8 bulb t5 fixture..their in 3g pots wit canna coco as the medium..im also feeding the canna line of nutes such as canna start, canna a&b, rizo, & boost didn't pick up the cannazym hope my spelling is correct..i also have sum new mommy's vegging as well afghan kush, lavender, purple wreck, cheese, great shark..but here are the autos at three weeks i noticed these autos have a long veg time..