At night my temp is dipping down to 68/69 is that good or should I turn ac down when lights shut off?
you in a desert? what are your day temps? i live in the desert, and i got a new a/c its freezing my ass off trying to get a comfortable temp for my plants and me.. i figure if its to cold for me its to cold for them. ( i have low humid too 20-30 percent is norm)
so temps in my desert environment may differ from ideal temps for growing for you..
but iv been keeping my temps at 70s at night. or id freeze.
im not sure what the definitive answer would be..
people look at my temps and say its to hot ( i keep it at 84-86F is where it seems to stay.. still trying to get the a/c shit figured out, and will try to keep it at 84.. just need to dial in my tent some more via figuring out my a/c ), but fuck my plants are fine.. so i dunno man. what the answer would be.. id go with logic i guess.. if its cold for you, its cold for your plants..
chris.