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It's pretty cold where I am right now, it can get to even 40F at night (but inside probably no less than 50F) Can the plants survive this? They've just germinated so I don't know if they can take it?

Can clones survive in cold weather? Its currently around 55-60F during the day time and 40F during the night.

Its hovering around 55F where I live and I don't have a heating pad, so I thought I'd take some moist tissue paper with my seeds in it and put it inside a rice cooker (not set to cook, just warm) I checked in a couple of hours and the tissue was dried up and saw some vapor when i opened the...

But this is just a guess, right? What really determines if we can go up to 99% continuously or not?

I know you're not supposed to have a continuous load on a circuit for more than 80% of its peak capacity. Does this apply to extension cords too?

Are you able to run extension cords out the room with those door seals?

I'm kinda far (in the victorville area) I'm especially looking for non-growers

Has anyone sealed an entrance door to their grow room from light leaks? How'd you pull it off?

Its cold right now where I live. How can I bring the temperature up to about 80F for my seeds to germinate? I don't have a heater, and leaving the seeds on top of a hot pan would probably dry all the moisture and kill the seeds!

I am starting a small collective. What do you guys think I should do to attract more people to my collective? I don't want a huge amount, maybe an extra 20 or so beyond the friends I already have that are joining.

I live in the desert so temps will be getting really hot soon. I was thinking of running my flowering cycle during night hours to keep temps down, but the electricity usage will not look good. So I am reconsidering doing flowering during the day. I was wondering: do you guys think lots of...

I am about to buy my CO2 equipment but one thing is confusing me: Flow meter setting or generator size in CFH (Cubic Feet per Hour) What is this? what is a standard setting I could use to get an idea (I just want to run some figures so I get an idea which size tank to buy for my grow space)

This thread confuses me. The OP says that carbon filters do not work 100%. Other threads and the guys at the local shops say that carbon filters do work 100% (so long as you're cycling you're room's air every 5 minutes) Who is right? Do carbon filters kill ALL the smell or NOT?

I am buying a small fan for a small carbon filter and was wondering if I can use it later to added to the CFM I get from another filter/fan (when i move my grow to a bigger room down the line)?

Is there an "ideal" flowering color temperature, or is everything from 2500-3500K about the same?

http://www.hydroponics.net/i/132101 Does anyone have this unit? All the other cyclte timers I've looked at for 1 minute intervals are priced at $65+

anyone have an opinion either way?

I'm going to build a 12Lx6Wx8H grow tent soon and am trying to figure out the best configuration of lighting. My options are 3 600w HPS vs 4 8-Bulb 4' T5HOs. The tent will house a 36 plant screen trained grow. 3 600w's will use around 1900-2000 watts and output about 90,000 lumens per bulb...

I want to create a sealed 10'x6'x8' tent and seal it off, so I can run C02 and A/C in a smaller space and hopefully not have to control odor. Is pandafilm a good choice for creating a completely sealed off room? If not, can I run a carbon filter, but exhaust internally inside the tent, just...

I checked my panel box and only saw something that said "Interruption Rating: 10,000A" which I hope means the panel box can take 100 amps. Now how do I figure out what each circuit can take? I've heard both 15A and 20A are popular, which is a pretty big difference.