whats happend to my plant, in the same cuboard, same nutrients just a basic grow using blood and bone fert, all fed the same and all the same age, 5 weeks into veg, 2 of them are fine the other well. stopped growing, its still alive and very green, still feeding. it just stopped growing, iv pruned it and it grows back but just to around the same size... whats going on im a newbie to growing