i use a 400watter from start to finish,obviously i change to hps when flowering,,3foot will be to high,,theyll stretch,2.5ft to start off with will be fine,then lower it bit by bit each day,,18/6 is better,ive tried both 24/0 and 18/6,,,,,the plants in the 24/0 started to look knackered in the second week,then i changed back to 18/6 and after there first 6 hours darkness they started to perk back up,,,,,,,,,,,,,,,,,,,,,,,,peace

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