im using hydro bubbler, 10gal, 1/4tsp 30-10-10, 400watt mh 16in away, ph5.6 water temp 80-85.rh 55 room temp 80-90, babies are 18 days old (plant 4&6). i saw the leaves yellow last night and i checked again 28hours later and got alot browner. someone had told me the bottom leaves suppose to fall off anyways. is this the meaning of that or something i should worry about? thanks