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Pre-planning the new LED grow, tons of new variables

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14 posts • Page 2 of 2 • 1, 2

Re: Pre-planning the new LED grow, tons of new variables

Postby MissingCow » Tue Aug 05, 2014 5:14 pm

Today the Solar Storm arrived. I've installed it in the tent, and have been running an environmental test for the last 3 hours, to continue all night. So far, with the Solar Storm on, and the dehumidifier cranked all the way down, the heat rises to a high of 95*F, while maintaining a low humidity of 35%. With the dehumidifier not running, the temperature seems stable at 91*F. Both are within the optimal CO2 temperature range, so I am happy about that.

I will likely have to use a heater during the night cycle to keep temperatures within 5-10*F of the high temp when lights are off to decrease internodal distances. Since this is my first CO2 grow, would that indicate a night time optimal temp of 80-80*F?

Any opinions on that would be appreciated. Thanks!
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image.jpg
Solar storm installed
image.jpg (138.36 KiB) Viewed 6556 times

"Medicinal, recreational, and sacramental utilization of this plant are identical. To be healthy is to be happy is to be holy, all of which are connected to Cannabis." - Joan Bello, The Benefits of Marijuana
MissingCow
 
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Re: Pre-planning the new LED grow, tons of new variables

Postby rkymtnman » Thu Aug 07, 2014 7:35 am

Nice looking setup. Maybe SME can help with CO2. I've never used it.
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Re: Pre-planning the new LED grow, tons of new variables

Postby MissingCow » Fri Aug 08, 2014 7:25 am

Thanks RKY! I'm hoping that it will perform as as good as it looks.

Everything is ready to go now, except the drain which is still giving me troubles. It's backing up like something is stuck down there, however the house is 2 years old and the drain was capped in the basement until I started using it for hydro drain. I have someone coming over to take a look at it this morning, and I am crossing my fingers I don't have to pay an actual plumber.

All environmental systems have been installed including a carbon filtered air circulation system, oscillating fan #1 and a humidifier on the right hand side. The dehumidifier, CO2 monitor and 2nd oscillating fan are tucked on the left side of the grow module.

If I can get this plumbing problem worked out I will be fully in operation... except of course my seeds which I was planning on a week ago. With the early arrival of the solar storm, I am now officially quite behind schedule. This is not ideal, as I will have less than an entire grow cycle with which to evaluate the light. I'll have to decide mid-way through flowering if I should send the light back and retrofit the grow to house 1000k HPS, or keep the light.

Truthfully I'll probably keep the SS880 unless I am severely disappointed. The entire grow is built around it, to change to HPS would also require ducting, a 2nd inline fan, in addition to the hood-ballast-lamp combo. I would also not receive the benefits of UV lighting without adding supplemental fixtures.

In the end, I guess we'll see. That's the purpose of this built, to test and evaluate. Thanks again for stopping by!
Attachments
2014-08-07 22.23.23.jpg
Grow space
2014-08-07 22.23.23.jpg (759.59 KiB) Viewed 6550 times
2014-08-07 22.24.38.jpg
All systems in operation
2014-08-07 22.24.38.jpg (1.14 MiB) Viewed 6550 times
2014-08-07 22.23.03.jpg
Carbon filter, humidifier and oscillating fan #2
2014-08-07 22.23.03.jpg (958.43 KiB) Viewed 6550 times
2014-08-07 22.22.57.jpg
Air circulation system
2014-08-07 22.22.57.jpg (1.16 MiB) Viewed 6550 times
2014-08-07 22.22.43.jpg
Dehumidifier, oscillating fan #1 and CO2 monitor
2014-08-07 22.22.43.jpg (1.11 MiB) Viewed 6550 times
2014-08-07 22.22.34.jpg
CO2 disbursement halo above SS880
2014-08-07 22.22.34.jpg (983.11 KiB) Viewed 6550 times

"Medicinal, recreational, and sacramental utilization of this plant are identical. To be healthy is to be happy is to be holy, all of which are connected to Cannabis." - Joan Bello, The Benefits of Marijuana
MissingCow
 
Posts: 148
Joined: Tue Jul 29, 2014 8:35 pm

Re: Pre-planning the new LED grow, tons of new variables

Postby SisterMaryElephant » Tue Aug 12, 2014 12:46 am

rkymtnman wrote:Nice looking setup. Maybe SME can help with CO2. I've never used it.

As a matter of fact, I do have opinions on CO2 use. FCG-Frank used CO2 on his journal here as well... ;)


MissingCow wrote:Today the Solar Storm arrived. I've installed it in the tent, and have been running an environmental test for the last 3 hours, to continue all night. So far, with the Solar Storm on, and the dehumidifier cranked all the way down, the heat rises to a high of 95*F, while maintaining a low humidity of 35%. With the dehumidifier not running, the temperature seems stable at 91*F. Both are within the optimal CO2 temperature range, so I am happy about that.

I will likely have to use a heater during the night cycle to keep temperatures within 5-10*F of the high temp when lights are off to decrease internodal distances. Since this is my first CO2 grow, would that indicate a night time optimal temp of 80-80*F?

Any opinions on that would be appreciated. Thanks!

Personally, I think 95F is a bit higher than I'd suggest. 90-91 seems more reasonable and there could be an added benefit when using LED lights according to one theory about why LED lights aren't keeping up with bigger HID lights. Some have speculated that higher temps (when flowering) might make up for less IR while using LED lights. Vegging plants can also take more humidity.

With increased daytime temps you could also increase the night time differential to 10-15F less.

Even with supplemented CO2, I would suggest keeping plants flowered under LED as short as possible due to penetration issues. I would start flowering at the 10-12" mark, personally. Flowering plants that are 2-3 feet tall at the end will be pushing it for the current gen LED lights to penetrate well.

If you have questions, ask away. I'm sure somebody will be able to help you out... ;)

Disclaimer:
I still use HID and I'm NOT an LED expert. All of my LED knowledge is from other parties or research so I can't say from first hand experience one way or another. I also run a medical grow consulting business in SoCal.
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