will LOW humidity hurt a plant?

[Mr. Clandestine]

85 - 90 degrees outside would cause 100-110f in the closed garage. Would get up to 130-140 in there, during the summer.

Hey Rusty,

Seeing that you're dealing with warmer temperatures pretty frequently, have you ever supplemented C02 to your growroom? If this has already been answered, please accept my apologies for bringing it up again. I'm just curious because temps get raised quite a bit around here during the Summer months, maybe not quite as high as yours, but still pretty warm around HIDs. I'd like to consider throwing in some C02 during the warmer months, but I've only done it once... and I didn't know what I was doing.

I know you've said that you're on a fixed income, so you may not be using it now... but have you ever successfully tried it in the past? Also, hope everything is going OK over in your neck of the woods... heard there was a 6.0 quake not too far from you recently.

[Rusty Trichome]

Sorry, no CO2 experience. All I grow is for wife and I only, so never a need/desire to invest in that kind of stuff.
I don't even use cool tubes, or anything like that. I have played around with a sheet of plexiglass hanging directly under the lights as a direct-heat barrier, but not really sure it helps much. Still adds to the ambient temperature.

The quake was in northern Nevada. I'm just south of southern Nevada, (Arizona) and didn't feel a thing.

[Mr. Clandestine]

Sorry, no CO2 experience. All I grow is for wife and I only, so never a need/desire to invest in that kind of stuff.
I don't even use cool tubes, or anything like that. I have played around with a sheet of plexiglass hanging directly under the lights as a direct-heat barrier, but not really sure it helps much. Still adds to the ambient temperature.

The quake was in northern Nevada. I'm just south of southern Nevada, (Arizona) and didn't feel a thing.

No worries, my friend. You're apparently doing very well without all the extra goodies, so that's something for me to aspire to, too. I don't grow for profit, same as you I just do it to share with my wife and a few close friends, but there's still something in me that's always wanting to try the latest and greatest gimmick on the market... as opposed to sticking with what works.

I've never built a cooltube either, because I've got an array of different sized lights laying around. I have, however, used a Cool Sun hood from Sun Systems, and when air-cooled, these things work awesome. If you ever decide to invest in a sealed reflector, I'd highly recommend one of these.

Glad to hear the quake didn't rattle ya around! Take care.

[theelectrician]

sticky,hi & rusty ive personally killed 2 crops of young uns.combine 20% humidity with rapid airexchange and heat u make plant jerky no crap every plant dead overnite:wtf:

[Rusty Trichome]

Mr. C. - If I could afford it, would go with the air-cooled hoods, or cool tubes. Would be a big help. But am ok where I'm at with them. Seems winter is worse for my ladies, tho. Just keeping the nighttime temps above 60f is costing a small fortune. (900w all night, every night) Costs more than running the lights. Spring is coming soon, tho. :thumbsup:

theelectrician: Best to understand what you are trying to put the ladies thru, and how to adjust your equipment and nutes, to better suit thier needs.
For instance:
start young ones indoors where temps are reasonable and they are strong enough for the transition, you don't nute full strength, you adjust the lamp height to suit the situation, you prepare the soil to retain moisture better, cool air agressively blowing back and forth on them, water daily...
Just slapping them in a dry, windy sauna, without any preperation...of course they fry.

[DeeDouble]

My plants are 28 -35 rh. Is this good or bad? What do u mean by the term "mist". Is this spraying the plants leaves with water????