I have a serious problem alert

M

mark's grow

Member
If I have not missed something here, your humidty and temputers are good.

Spending loads of time and money to adjust the temps and humidty a little will not make much diffence to the plants.

I never worry unless my temps go out side a range of 20c to 35c light on and 10c to 30c light off

I don't check the humidty, just make sure I have good airflow in the canopy.
 
SkyFox

SkyFox

Active Member
They top off at 87 n at night with 47 humility at night drops slowly,
I have my dim down all light at 50%
I was thinking yes I'll do the nights on n days off, but 18/6 I would eventually grow light on during day till 12/12 I could dial in but as of now 18/6 there be no way I can keep it on night grow
So hmm u suggest a ac, evaporator cooler, or evaporator Humidifier or maybe I should move stuff? Lik its it ok if I have a fan next to my carbon filter/inline fan?
 
SkyFox

SkyFox

Active Member
mark's grow said:
If I have not missed something here, your humidty and temputers are good.

Spending loads of time and money to adjust the temps and humidty a little will not make much diffence to the plants.

I never worry unless my temps go out side a range of 20c to 35c light on and 10c to 30c light off

I don't check the humidty, just make sure I have good airflow in the canopy.
Click to expand...
Oh ok, well I just being OCD about it, cuz at night it does drop u know, just what to make sure I have no issues , just want completely control over everything h know,
 
NukaKola

NukaKola

Well-Known Member
SkyFox said:
Oh ok, well I just being OCD about it, cuz at night it does drop u know, just what to make sure I have no issues , just want completely control over everything h know,
Click to expand...
If you want complete control, seal the room, add an AC, Dehu, humidifier and supplement CO2. That will get quite costly however. I don’t think your temps are all that bad, maybe find a way to intake more cool air from your house. The RH is fine and once you add plants it will definitely go up.
 
R

Relic79

Well-Known Member
SkyFox said:
Oh ok, well I just being OCD about it, cuz at night it does drop u know, just what to make sure I have no issues , just want completely control over everything h know,
Click to expand...
Yes, I would say you are falling inside the range of acceptable. Adding plants will change things. Wait and see. Your next step will probably be window a/c or dehumidifier.

Honestly when you are using a vented room like this, you really need the incoming air to already be at or near what it needs to be to offset the heat of the room. Any device you use is going to have to work extra hard to keep up with the air exchange. I am running 2 600watt hps lamps with ballasts in the room and have 19c to 20c air coming in which keeps the room at about 27c, sometimes it creeps up higher and I need to leave the door open.

It's tough to nail the exact environment without a completely sealed and controlled room.
 
M

mark's grow

Member
SkyFox said:
Oh ok, well I just being OCD about it, cuz at night it does drop u know, just what to make sure I have no issues , just want completely control over everything h know,
Click to expand...
Are you running the lights at night?

Say it get upto 32c midday and at night it gets down to 20c

Light being on at night could bring my temps upto 30c and 32c light off.
 
SkyFox

SkyFox

Active Member
Well I try, but if I'm doing 18hr on 6 off, there no way to keep lights on at night n light off at day
 
M

mark's grow

Member
Sorry I got the wrong idea, thought this was about flower room temps (full light )

Veg temps should be easy ( should be using less than half the space, light etc.

For example I use a 600w hps in flower and 250w hps in veg.

Veg lights on for 18 hours a day ( if temps high could even veg for 16 hours a day without any problems)

first 2 weeks in flower, you can turn lights power down without affecting the plant growth.
 
SkyFox

SkyFox

Active Member
Could u give me like a idea of temp n RH should be in each grow for example
Temp- RH-
Early veg-
Late veg-
Early flower-
Late flower-
Dying-

So I can see where I'm at, cuz if I get it right now with earl veg ima have to do something more to get it right down the line
 
M

mark's grow

Member
SkyFox said:
Could u give me like a idea of temp n RH should be in each grow for example
Temp- RH-
Early veg-
Late veg-
Early flower-
Late flower-
Dying-

So I can see where I'm at, cuz if I get it right now with earl veg ima have to do something more to get it right down the line
Click to expand...
plants grow very fast in high temps
but this can cause them to stretch.

Hi temps kill thc in late flower over 30c

As temps go up, the humidity goes down as the air can hold more water.

Early veg Temp 20c - 30c RH 50 - 70
Late veg Temp 25c - 35c RH 50 - 70
Early flower Temp 25c - 35c. RH 40 - 60
Late flower Temp 20c - 30c RH 30 - 50
Drying temps 10c - 20c. RH 40 - 50

All temps should be taken at canopy level below light.

Good airflow in the canopy will help to reduce humidity
 
SkyFox

SkyFox

Active Member
Yea I want my humidity to go up lol, my temp to go down, thx for the info I will put in those figures in, now it's been 6 hrs n these r my temps since then , just now Screenshot_20200815-151725_SensorPush.jpg
 
M

mark's grow

Member
The humidity may be a little low but once you have plants in there and your watering the plants the humidity will go up.

To get an idea hang a wet towel in the room.
 
M

mark's grow

Member
As you can see, it's starting to increase the humidity and reducing the temps.

A swamp cooler does the same as a wet towel but more effectively, so your temps will go down a few degrees, more if you add a frozen 5ltr bottle and this will increases the humidity

I Have use 2 bottles a day in my swamp cooler (loft grow summer).

But a good thick canopy will increase the humidity loads in late veg/early flower.
Top every plant a few times.

Often thin out thick canopy in late flower to reduce the humidty and increase airflow/light in the lower canopy
 
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