Quote Originally Posted by xcrispi
:stoned: my buddy has
4 waterfarms under 1000w. hps inside a cooltube .
light is on 20 / off 4 . temps under light is 80deg. at canopy height .ambient room temp is 73 deg. = light on / 58 deg = light off . this is w/ heater in room w/a stat on it set very consevativly lots more heat if needed.
once flipped from 20/4 to 12/12 do you think he'll have any probs?
w/ nice cool temps they're so pretty purple n all . they're fem. d/p blueberry .
should he be watching temps in bottoms of farms w/ a fishtank thermometer ?
peace all :thumbsup:
Water temps should never get beyond 72 F and never below 60 F. A large water temp fluctuation is not good either. A solid 65-68 all the time would be the most ideal, but if they are going to be too hot or too cold, I would go with the cold. No worry about bacteria, etc.