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Temperature problem, can someone help?

GSClover91

GSClover91

Member
So at night I'm noticing that my inside grow tent temperature drops significantly down to 14C or 64-62F but usually during the day when the lights on, the temp is around 25-30C or 75-80F and my humidity is good though, right around 30-35% but I'm wondering if the temperature drop is making my plant have a P deficiency due to the cold temp, cuz I have heard that before somewhere so can someone tell me if it's okay for the temp to drop at night?
 
Cascadian

Cascadian

Well-Known Member
My temps have been doing the same thing, I noticed the low was 61F today. I have not seen any deficiencies or growth problems yet. I will be turning the heater up a hair though, it is best to keep them above 65F.
 
topfuel29

topfuel29

Well-Known Member
GSClover91 said:
So at night I'm noticing that my inside grow tent temperature drops significantly down to 14C or 64-62F but usually during the day when the lights on, the temp is around 25-30C or 75-80F and my humidity is good though, right around 30-35% but I'm wondering if the temperature drop is making my plant have a P deficiency due to the cold temp, cuz I have heard that before somewhere so can someone tell me if it's okay for the temp to drop at night?
Click to expand...
Nope, your soil needs to be colder than that to get nutrient lock.
 
GSClover91

GSClover91

Member
Well today, I woke up and it going towards 52-54F but then once noon hits, the temp goes back to the regular 75-78F. I know it's under 40F and it will start to cause problems but a long as it stays above 50F, is that okay?
 
Ibex

Ibex

Active Member
Easy fix, run your lights at nighttime.

My flower lights kick on at 7pm-7am, I use the heat from the lights to heat my house in colorado, where the current temp is 1deg F
 
M

mrblu

Well-Known Member
yeah it makes sense to run lights at night time always. keeps them warm in the winter keeps them cooler in the summer.
 
Silky Shagsalot

Silky Shagsalot

Well-Known Member
i have a little box heater i use at night to keep the temps. good. if you do this, make sure you use a ceramic type heater. the other ones will light things up, and you don't want that. if your root-zone gets too cold, it can really slow things down...
 
Ibex

Ibex

Active Member
GSClover91 said:
The thing is I've already been in flower for 3 weeks
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Then I would do the longer darkness to get to where you need to be but thats just me.

One day of more light shouldnt be the make it or break it in light stress though.
 
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