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Tent temperatures

Ca++

Well-known member
I don't like below 26, because our plants also like to be warmer. I really don't mind until the mid 30s. This is air temp, and leaves are best around 28-30 if you have an infra red thermometer. Nothing really happens until about 33, in terms of yield reduction. the upper 30s are troubling though. By 40C you have problems. Though some people work that regularly
 
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