evening! i have a 1000 watt hps above my five moby dick autos. its day 6 and they are growing very well! only thing im concerned about is if they are getting too much, or the lamp is too close. the only reason i ask is because i can see a slight yellowish in the center and lime green all the way. i have it set about 12-14 inches about them. suggestions would be much appreciated. ty