1. Cali orange 44 days into flower 400w hps 12/12, ffof soil, ph 6.4, temp 78 - 79 deg. the upper most cola got burnt when i was testing the 400 (i upgraded midway from a 150). That happened and everything else was fine. Now all of the sudden i'm starting to notice these brown spots on the 2 of the lower cola's . I don't know what's up. I've recently started feeding her FF cha ching at 75% strength. Is this nute burn? Manganese Defic?