i used to be one a 24 hour Light then i dropped to 20/4 anyhow, the point is my lights provided around the clock temperature control (it would be too cold where i grow otherwise) I switched to 12/12 a week or so ago and it has been very warm. today it is cold ( the dark period is during daylight hours for heating purposes) the temperature in the grow room has dropped from 75 this morning with the lights on to 50 now with 2 hours left. i think 50 degrees is the bottom end temperature before there is a disruption in growth. (i try to not go below 65) anyhow tomorrow is gonna be even colder. how important is a constant temperature to successful growing? it makes sense for the plants to tolerate cool temps during the dark perid, but how cool? also how much will this contribute to hermaphrodite/male dominated plants, (some plants are not showing sex yet) is it worth getting a heater if it is only getting this cold like 1 every 2 weeks?
