Temp & Humidity

[max351]

Can anyone tell me the exact Temp & humidity levels for veg stage (day & night) ?

 

[Madmick]

Look for VPD chart

 

[Red Eye Hero]

theses are the optimal settings on my pulse one monitor has its own seeding/veg/flower profiles
But also do what Micmac said look at the vpd chart

Pulse Grow - Pulse One Grow Room Monitor - Track VPD, Temperature, Rh

Pulse Labs provides smart and easy grow room monitoring solutions.

pulsegrow.com

Day time
Night time

 

[Red Eye Hero]

Vpd charts found here for clone/veg/flower

VPD Charts in Fahrenheit and Celsius With Leaf Temperature

We made some easy-to-use VPD charts for both Celsius and Fahrenheit, for clone, veg, and flower stages. Hope you find them useful. For more information about VPD check out our VPD Guide. VPD Chart Maker and Calculator I WANT IT Table of Contents VPD Charts for Fahrenheit VPD Chart for Clones...

pulsegrow.com

 

[max351]

Thank you very much.

 

[Old fox]

Red Eye is running his heat and humidity very low for veg, which slows down growth. Plants veg much faster in 36% and rh80. Those lower parameters are better from a few weeks after flowering starts, to avoid foxtails and late flower budrot. I specifically don't run a dedicated extraction fan in either of my veg tents. Just a fixed fan pointing up towards a roof opening to maximise heat( and humidity) when it's not full summer. Weed absolutely thrives for weeks on end outdoors in 40%+ summer days, as long as roots have water. Thats why vpd charts have a wide range.

 

[Red Eye Hero]

Red Eye is running his heat and humidity very low for veg, which slows down growth. Plants veg much faster in 36% and rh80. Those lower parameters are better from a few weeks after flowering starts, to avoid foxtails and late flower budrot. I specifically don't run a dedicated extraction fan in either of my veg tents. Just a fixed fan pointing up towards a roof opening to maximise heat( and humidity) when it's not full summer. Weed absolutely thrives for weeks on end outdoors in 40%+ summer days, as long as roots have water. Thats why vpd charts have a wide range.

As long as I’m hitting the VPD target I should be right yeah? My tent is normally at 27° 62% humidity which gives me 1.2 VPD

 

[Old fox]

As long as I’m hitting the VPD target I should be right yeah? My tent is normally at 27° 62% humidity which gives me 1.2 VPD

It will work, but if you set your temp/RH higher, the veg growth rate will explode in comparison Try it for a week and see how much faster they grow. Reduce it down again about 2 weeks after flip to 12/12.

 

[Red Eye Hero]

It will work, but if you set your temp/RH higher, the veg growth rate will explode in comparison Try it for a week and see how much faster they grow. Reduce it down again about 2 weeks after flip to 12/12.

okay I just set it to 36° and 76 humidity I’ll let you know how it goes

 

[Red Eye Hero]

It will work, but if you set your temp/RH higher, the veg growth rate will explode in comparison Try it for a week and see how much faster they grow. Reduce it down again about 2 weeks after flip to 12/12.

Okay so the tent has finally reached the temperatures well close to it it’s 33° and 72 humidity but the problem I’m having now is my water chiller can’t keep up so my water temps at 23° instead of 18 I’m in the process now of freezing a bottle of water to chuck in the reservoir

 

[Old fox]

Yeah, nah. Gotta keep roots cool as priority. I thought you were running a water chiller? Dial the ambient temp and RH back down if that's the case. Proper water temperature at rootzone is more important. You may need a water chiller, regardless, heading into summer weather in Aus

 

[Red Eye Hero]

Yeah, nah. Gotta keep roots cool as priority. I thought you were running a water chiller? Dial the ambient temp and RH back down if that's the case. Proper water temperature at rootzone is more important. You may need a water chiller, regardless, heading into summer weather in Aus

I do have a water chiller teco hy150

 

[Madmick]

Doing this is going to cause you more problems than you can handle

Set your day time temps 26 to 28 , night time 18

Forget atifically trying to raise humidity, you don't even know how your space works yet

Learn to deal with what you got , the smaller the space the harder it is to maintain constant environment let alone using humidifier etc to alter it

Its about consistency and knowing your grow space

 

[Red Eye Hero]

Doing this is going to cause you more problems than you can handle

Set your day time temps 26 to 28 , night time 18

Forget atifically trying to raise humidity, you don't even know how your space works yet

Learn to deal with what you got , the smaller the space the harder it is to maintain constant environment let alone using humidifier etc to alter it

Its about consistency and knowing your grow space

I did have it consistently at 27° and 62 humidity which was perfect then the old fox said it’s better to raise it and have it hotter and more humid so I tried it but that has made the water temperature too high so I’ve gone back down to 27 and 62 and without the humidifier I struggle to keep the humidity at a constant 62%

 

[Porky]

I did have it consistently at 27° and 62 humidity which was perfect then the old fox said it’s better to raise it and have it hotter and more humid so I tried it but that has made the water temperature too high so I’ve gone back down to 27 and 62

That's the problem with roots in water. You have to make sure they are your number 1 priority.
You'll just have to be satisfied with the growth rate.

 

[Quokk@]

This Doctor explains VPD quite well ...

 

[Red Eye Hero]

This Doctor explains VPD quite well ...

After watching that video and checking the charts again I’ve now changed my VPD to 1 not 1.2

 

[Old fox]

That's the problem with roots in water. You have to make sure they are your number 1 priority.
You'll just have to be satisfied with the growth rate.

True, benefits and limitations of all grow systems.

 

[Red Eye Hero]

Finally got my root temp back to 19° fuck if I let it go any longer cunts could’ve died roots looked like they were turning brown

 

[max351]

Going into flowering stage shortly, should my VPD target be higher than veg stage.
Like 1.4 ?