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My plants got to experience I night without heat, I had a power owtage and my heater shut off in my grow room the lows was 22° and the highs were 35° I warmed the grow tent back up and went to work but I came home and now their looking like this
If you mean degrees Celsius, your plants are more than likely dehydrated. Give them a good drink and they should recover soon enough. One night of 22 is nothing to your plants and will not cause what your plants are showing.
That "low" temp is actually perfect for cannabis and 35c is a bit too high! Cannabis thrives between 21-28c.
Do you need the heater? Is the heater inside or outside the grow room? Do you regulate the temps?