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- #441
Speaking of growing conditions... Doc, you were right about the increased temperatures under the lights driving down RH numbers. The space my new girls are in is now sitting at about 80f and 40-45% rh during lights-on. Thanks!
Just a bit of physics, bro!
Warm air can hold more water.....
But look out when the lights go out, if the temps drop too fast or too far, you're going to have condensation and really high Rh.....and that's going to give you powdery mildew.
Keep the nighttime temps above 67 and you should be OK. I spray my plants with compost tea every week or two....the leaves love it, and it really helps with the nasties that might grow.