i've got a nice new little operation going. think i've got every thing right: temp, humid, co2, light, air, etc. but the girls seem to be growing very slowly. ok, i don't even know if they're girls, yet. they range from 1 to 4 inches tall and look healthy. but theyr'e almost two months old. i've got the third set of leaves, and only a little bit of yellowing on 2 out of 7 plants. am i missing something, impatient, or just used crappy seeds ? help, please.......cuzican