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Temp, humidity and vpd problems

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Temp, humidity and vpd problems

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lockedshed

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Hi
Im roughly 10 days from chopping my first grow. Im struggling with heat and im worried about up coming drying.
But before the drying, which is going to be challenging with this heat/humidity, I'm wondering about my vpd.

Lights on im running 26.5 - 27.5c. That is with the light driver outside of the tent, light on 55% power (mars hydro fc6500 in a 4x4).
I can get lights on vpd to 1.2 - 1.5.

Lights out i have to keep it minimum 24c, but even that struggles to get me 1.20vpd.
I have a hydrone 5 on full blast constantly in the tent which lowets some humidity, but causes lots of heat.
If I add another dehumidifier to the lung room, it gets way too hot.
So I exhaust down the stairs and have a dehumidifier downstairs to collect the moisture.
My weather humidity outside high can be 97% and low around 55% according to the weather.
I have 3 oscillating fans, an intake inline on low and an exhaust inline on between 6 - 10 power.

Im worried about mould as some buds are pretty big and some stuff touches each other, despite loads of yo yos and plant wire holding stuff apart.

How do you deal with temp, humidity and vpd?
I want Lights of temp and humidity to be lower, but Its impossible.
 

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kinda sounds like you’ve over complicated things,.
what’s temp and humidity with everything off but the fan or two and the lights,.

Im Just trying to keep my lights off vpd above 1.2 but I cannot lower the temperature below 24c, which i believe is a bit hot. Thats the issue I'm trying to get advice on.

Its my first grow, ive had a multitude of problems ive over come, and im just seeking advice to get me to the finish line.
I was hoping for more than one response but you cant have everything.
I cannot turn my dehumidifier off in my tent otherwise I'll never get back to 1 2vpd.
With lights off, oscillating and inline fans on, and hydrone 5, I can sometimes get to 23c, but my humidity is high 60's which gives me vpd of 1.0 or worse, which im told is not good for late flower and will cause lots of issues, mould being the main one.
So I have to take the temperature up to 24c to lower humidity a bit.
Its hit 25c with lights off today.
AC in my country is not like usa, so heat is an issue.
Im just wondering what people do in my situation as my searches dont give me the answer to my situation.
 

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