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How low of a temp, is too low, for the 12 hours of darkness?
you get them to purple by growing genetics that purple.
thanks man. all the shit these people are saying is in question. if you dont know then dont act like you know. some things dont even make sense. the temerature differential is optimized? wtf? how do you optimize the diff? and node length is determined by the light fixture distance. ive proven that one too. you think that outside, mother nature is steady temp at night, every night? hell no. it differs. sometimes it goes real low. it doesnt effect the plant at all. i have 50 of the same seeds from the same plant, and every one of them grow just the same every time. i grow in summer and winter, and my temps are always different. we need a side by side grow. i vote, temp diff doesnt mean much for day/night.