I added Sodium Bicarbonate to get a buffer against the acidity. At defoliation unfortunately i ripped off a bud from the main left. Not an easy time for her. But hey, still a proper girl in comparison.
i know its 3 years ago but how did you like the migro light? i just bought the ARAY 4 for a 120cm x 60cm tent and would like some input or maxbe a tip (: