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Shake and bake xD
Yup 1 week of clean ph adjusted water... If you dont do this sometimes the weed might not taste right or come out as good as it should
Yup the frozen bottles should work just remember to not use plain ice cubes straight in there... just frozen bottles
Well if ur lookin for high yeilding tall plants ur going to need some nice light.... 7 ft grow room so id say 600 watt hid would be great but 400...