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Average CO2 levels of air not enriched with CO2 is about 300-400. Marijuana plants can easily handle levels of 1200-1500 PPM CO2. I did my first grow without CO2. I supplemented CO2 mainly just to see if I would get a better result. I am happily impressed and I think its a must add to any...

Its actually an insane boost in growth. http://en.wikipedia.org/wiki/Calvin_cycle Its a lot to read, and a lot to understand, but to make it simple. 6 CO2+ 6 H2O + V = C6H12O6 (sugar) Where V is light. This tells us that you can't utilize all of your light without adequate CO2 levels. Your...

My plants can touch my cooltube reflectors without harm. I usually have to end up stringing those girls off the lights just so they don't shade the rest of the room. My girls are going ballistic since my addition of c02...

Yeah, and if you check out the picture that Psilocybindude put up, you can see that your plants 26 inches away are getting approx 7459 lumens. If you were to reduce that distance to 13 inches you'd be receiving 29,834 lumens. You use the same amount of electricity but get 400% more lumens...

im not a boner killer!!!

I would suggest it, it really helps with the "efficiency" of the light. Light follows the invert square law. The intensity (or illuminance or irradiance) of light or other linear waves radiating from a point source (energy per unit of area perpendicular to the source) is inversely...

I've used miracle grow soil before, and its not "great" by any means, but if you're new to the growing thing, don't do what I did and add nutrients too early. Wait until they show signs of deficiency before you add any nutes, IMO. Sounds like you have your lighting handled. Do you have an...

Im trying to train them a little bit as of now. It has been troublesome to do it because I didn't think they were healthy and stuff, so I didn't want to hurt them anymore then I had to. I'm going to start weighing down the mainstems and stuff with fish weights and twine soon. I'll be...

UPDATE UPDATE UPDATE UPDATE http://www.youtube.com/watch?v=F2vs6SnJ1s4 UPDATE UPDATE UPDATE UPDATE

My local hydro guy has been the most knowledgable person in the growing field I have met. You can tell he is a genuine enthusiast and doesn't really have interest in making money from it. He has even offered to make BHO or bubblehash for me using his methodology etc; and I guess he does this...

I've been reading and talking to my local grow guy, and he says that using H202 in conjuction with beneficial bacterias is a bad idea. Reason being that beneficial bacterias will be killed by the h202 and then you have all these "dead bodies" laying around in your water. "Dan" at my local...

Roots are looking nice and healthy again. The frothyness in the water has gone away; I think this frothyness is a product of the hygrozyme. I'm going to changing out my res again here in a few days. Im about to add in my Co2 to the room as well, today!

Nice and white roots since I covered my lid with plastic. I think it was light leaking though the lid and causing old bacterias that were in the res to come back maybe? Either way, I blacked it out and the plants have gotten larger so they are shading the lid more now too. Roots are healthy!

I'm not really an expert on much of this, but it seems to me that there is a difference between water soluble nutes and non water soluble nutes. I notice that on these House and Garden bottles on the "guaranteed analysis" it says "Water Soluble nute x" whereas my general hydro bottles say...

On my "feed schedule" that my local grow expert recommended to me with this house and garden line, it says to use the Great White Mychorblahblah beneficial bacterias as they are not allowed to ship their beneficial bacterias into the states...

Yeah, I added the "great white" mychorhizaeaiejeeerie to "compete" with the non beneficial bacterias; if anything. I noticed that when I added the hygrozyme to my water it frothed up fairly quick so I think this may be the cause of my frothyness. I'm going to run this system for a week and see...

I had a strange feeling about it as well so I dumped all my water and cleaned the res. Washed the roots in the sink and got all the filmy shit off. Filtered fresh water. Checked the Ph of my filtered water pre nutes and it was 6.99 according to my PH meter. YAY FILTER WORKS!! Added my house...

Sweet! Did you watch the video? Happen to see the roots? Have you had your roots change color due to nutes before? I have a pretty heavy supply of oxygen but I'm concerned about rootrot. Also, is the agitation from the airstones going to be harmful to the roots? It doesn't seem to be very...

Actually, its completely silent outside of the room once the door is shut. I'm pretty sure the guy that had this house before me was using this space to grow and he insulated the walls, etc. Lucky me!!

Temps were at 81 when I opened the door this morning. I have thermometers in the hot spots in the room as well as in the water. Water temp was 68. Posting video in 10-15 minutes. Edit: Video Posted. http://www.youtube.com/watch?v=tKwFT7pX3K0&feature=youtu.be