Started second tent grow September 21. 3 photo AK clones and 2 autos, Cheese and Northern Lights x BigBud. Very slow start having pH issues, but once i got that corrected they seemed to settle in nicely. Have already defoliated a few times while trying to shape the clones. pulled them out for a water and Hard LST session today. I'v noticed an amazing burst of growth in the last week. The photos are now 2 feet wide..so i need to re-arrange the tent. Im running my Viperspectra 600's pretty low,18" thats 4" lower than manufacturers specs(watching close for any burn) just want to compare with last yield(at 22" recommended distance).