8 weeks

switch · Jul 17, 2022

They have been enjoying their new home for 1 week now.
The tent presented me with a little complication:
The ventilation system is working fine and kicking hot air out of the tent but keeping the temperature in check is a struggle.
It is a 4" vivosun vent system.
I can not raise the light above 25% power (with the tent completely closed) or it will get too hot inside.
I have 2 more fans running all the time.
I think all this will be resolved with an AC unit in the kitchen which right now I can't do.
The green pot plant measures 18" high. All the others at an even 15" measuring from the rim of the pot.
Watering 400ML each every 3 days now.
Overall I am happy with the progress.
It is lights out tonight for their first 12/12 cycle.
Any thoughts or comments are welcome.

Zer0 · Jul 17, 2022

25% on the light to prevent heat, what light are you using?
They are looking good, they should be monsters when they flip to flower

switch · Jul 17, 2022

Zeromitch said:
25% on the light to prevent heat, what light are you using?
They are looking good, they should be monsters when they flip to flower

Mars Hydro TSL 2000

Zer0 · Jul 17, 2022

my mars hydro fc3000 puts out some heat but the driver is dedatched and in a closet with the door closed next to my tent, helps by a few degrees. The kitchen ac unit will help when you can do it. What is the hottest it gets in the tent if light was 50%-60%?

switch · Jul 17, 2022

Zeromitch said:
my mars hydro fc3000 puts out some heat but the driver is dedatched and in a closet with the door closed next to my tent, helps by a few degrees. The kitchen ac unit will help when you can do it. What is the hottest it gets in the tent if light was 50%-60%?

With 50% power it will go up between 29.5C. or 30.
Unless I keep the tent completely open.

switch · Jul 17, 2022

Zeromitch said:
my mars hydro fc3000 puts out some heat but the driver is dedatched and in a closet with the door closed next to my tent, helps by a few degrees. The kitchen ac unit will help when you can do it. What is the hottest it gets in the tent if light was 50%-60%?

azdadgrow · Jul 18, 2022

Here's a few thoughts on things I learned while trying to fight with temperatures in the tent.

Having a temp/humidity controller will go a long way to help regulate the exhaust fan and potentially, dehumidifier. I started out with a iPower exhaust fan (4") and found it was tough with the carbon filter on there, it never seemed to draw much air out, until I removed the filter. I also had better luck with an upgraded AC inifinity 4" exhaust and went with the manual control one and set it to the 6 setting.

You might be able to get away without the carbon filter if you need to exhaust more air from the tent, at least until they start flowering. I cut a few carbon pre-filters out to use in place of the larger carbon filter to help increase airflow and it's been fine. I just have to rinse and clean them out, periodically when I notice the tent isn't pulling enough air out.

Another thing I had to do was add an inline fan to the opposing bottom corner of the tent to the exhaust fan. I went with a vivosun 6" and use passive intake on the other bottom corner. I heard using pantie hose for the duct ends helps keep dust and bugs out and that's been working well too. Just keep an eye on them for collecting dust over time and you can clean them as needed to keep the intake air flowing. ** I find this was really important and I just run this on the same temp. controller as the exhaust fan.

I hope these suggestions help you and others that might be fighting temps. Ultimately for me, I found I had to move my tent into an entirely different room and ensure the exhaust was actually leaving the room, before I noticed a more stable environment.

Best of luck getting that dialed in, it took me weeks of experimenting before I could even notice what wasn't working so it does take time to adapt to your environment and space / limitations. :vibe:

:smoking:

switch · Jul 18, 2022

azdadgrow said:
Here's a few thoughts on things I learned while trying to fight with temperatures in the tent.

Having a temp/humidity controller will go a long way to help regulate the exhaust fan and potentially, dehumidifier. I started out with a iPower exhaust fan (4") and found it was tough with the carbon filter on there, it never seemed to draw much air out, until I removed the filter. I also had better luck with an upgraded AC inifinity 4" exhaust and went with the manual control one and set it to the 6 setting.

You might be able to get away without the carbon filter if you need to exhaust more air from the tent, at least until they start flowering. I cut a few carbon pre-filters out to use in place of the larger carbon filter to help increase airflow and it's been fine. I just have to rinse and clean them out, periodically when I notice the tent isn't pulling enough air out.

Another thing I had to do was add an inline fan to the opposing bottom corner of the tent to the exhaust fan. I went with a vivosun 6" and use passive intake on the other bottom corner. I heard using pantie hose for the duct ends helps keep dust and bugs out and that's been working well too. Just keep an eye on them for collecting dust over time and you can clean them as needed to keep the intake air flowing. ** I find this was really important and I just run this on the same temp. controller as the exhaust fan.

I hope these suggestions help you and others that might be fighting temps. Ultimately for me, I found I had to move my tent into an entirely different room and ensure the exhaust was actually leaving the room, before I noticed a more stable environment.

Best of luck getting that dialed in, it took me weeks of experimenting before I could even notice what wasn't working so it does take time to adapt to your environment and space / limitations. :smoking:

I am reading this over and over lol.
Taking the carbon filter out.
Yes my entire ventilation system is a 4" vivosun.
Also, someone suggested taking the 2 drivers that this light has on the top out of the tent. They get burning hot and that will help with the heat.
Someone else suggested running the lights at night when is cooler and darkness during the day.
Yes I am a clean freak.
That temp is a problem and I started the 12/12 cycle last night.
I'm gonna get to it.
Thank's for the info!

switch · Jul 18, 2022

switch said:
I am reading this over and over lol.
Taking the carbon filter out.
Yes my entire ventilation system is a 4" vivosun.
Also, someone suggested taking the 2 drivers that this light has on the top out of the tent. They get burning hot and that will help with the heat.
Someone else suggested running the lights at night when is cooler and darkness during the day.
Yes I am a clean freak. That temp is a problem and I started the cycle last night.
I'm gonna get to it.
Thank's for the info!

Next time I'll leave them vegging for 10 weeks instead of 8.

Zer0 · Jul 18, 2022

switch said:
Next time I'll leave them vegging for 10 weeks instead of 8.

I would veg for 2-4 weeks but that is me and i grow fast sexing autoflowers.

You can veg for however long you want but you can run into some problems if you veg to long.

switch · Jul 18, 2022

Zeromitch said:
I would veg for 2-4 weeks but that is me and i grow fast sexing autoflowers.

You can veg for however long you want but you can run into some problems if you veg to long.

I've never grown autos.
I've seen beautiful auto plants out there.
Have to start somewhere XD.
I think after Im done with this grow, I will try some.
For now I am trying to do everything by the book with these regular ones.
Hell I dont even know which strain they are lol. All I know is that they are feminized and that's it!

azdadgrow · Jul 19, 2022

switch said:
I am reading this over and over lol.
Taking the carbon filter out.
Yes my entire ventilation system is a 4" vivosun.
Also, someone suggested taking the 2 drivers that this light has on the top out of the tent. They get burning hot and that will help with the heat.
Someone else suggested running the lights at night when is cooler and darkness during the day.
Yes I am a clean freak. That temp is a problem and I started the cycle last night.
I'm gonna get to it.
Thank's for the info!

You are doing great so far and good luck, these plants are looking amazing!

I start my light cycle in the evening which also helps I think to run these lights at night. (7pm)
:greenthumb:

switch · Jul 19, 2022

azdadgrow said:
You are doing great so far and good luck, these plants are looking amazing!

I start my light cycle in the evening which also helps I think to run these lights at night. (7pm)

To Hell with it! My bedroom AC unit is now next to tent in the kitchen. The light is at 100% power now.

azdadgrow · Jul 20, 2022

Good luck with the changes in there, I know it takes time to get things right but automation is definitely key. Cheers to a cooler environment and one less thing to battle. :greenthumb:

:smoking:

switch · Jul 20, 2022

azdadgrow said:
Good luck with the changes in there, I know it takes time to get things right but automation is definitely key. Cheers to a cooler environment and one less thing to battle. :smoking:

Thank you. Yes Im not about to engage in another battle XD

Zer0 · Jul 20, 2022

Not having to worry about heat is a huge stress relief, plants are looking great!

switch · Jul 20, 2022

Zeromitch said:
Not having to worry about heat is a huge stress relief, plants are looking great!

Thank you so much. I hope they will grow to be like the ones I see here lol.

switch · Jul 20, 2022

azdadgrow said:
You are doing great so far and good luck, these plants are looking amazing!

I start my light cycle in the evening which also helps I think to run these lights at night. (7pm)

Good Idea! Thank's man. Makes sense.

8 weeks

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