thanx guys for responses b/b , n racerx ,
even w/ just the 4 hrs darkness air temps are at 58-59 so water temps cooler than that , ill steal my fishes thermometer for a lil bit n get an acurate cell temp and resevoir temp also .
stuffs in a cold basement so he put res./ cells up on 1in. thick siding foam insul . if not enuf we have sheeted a pallet w/ white shower suround material on it to put under the cells in the room and can raise the res. to match so warmer air can circulate under cells in room .
he really doesn't wanna havta run a heater in res. n havta recirculate the sys. yet , later maybe once bugs are worked out n cell spacing is figured out etc... but we thought he might get a few girls off first for trial n error / learning curve . we've done independent 5 gal. buckets before w/ great sucess but w/o a res. but they used a gal or more a day when in flower and quickly became a p.i.t.a filling buckets manually . so he got 8 farms n tex cntrlr. to try it . obv. u can do more than 4 farms under a 1000w light but he has never grown during the cooler mos . and we didn't wanna loose alot of time or the genetics to cold temp probs.
w/ the res./cell temps what is the min. the girls will put up w/ before death occours . rootrot etc... ?
peace