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buds, the only reason I am trying to get the humidity up to 50-70% rh, is because I read in the "Marijuana Horticulture"" by Jorge Cervantes that 50-70% rh for vegetative state is needed. Will lower rh workout ok?

sorry! I meant to say that the space awailable on the floor of my tent was 12 INCHES by 16 INCHES. The whole tent is 16 inches by 36 inches and sixty inces tall. I am using a small circulating fan to draw air from the room into the grow tent. The temp in the tent is 75-80 degrees.

Hi TwoTokeSmoke, Thanks for the help. I am using only passive ventilation because the "T5" compact fluorsents do not create much heat. The only air I am venting out is passive. I have tried the wet towel method, however I have not tried it infront of a fan. I am not off to try that. By...

First, HDPursuit, thank you for you swift reply. I am not sure I understand. You said "air flow will lower the humidity." My problem is the humidity is too low and I need to raise it. The "ultrasonic" humidifier that i just bought raises the humidity in the room. Then the grow tent becomes...

I am having trouble raising the humidity in my vegetative tent. I have hung towels, set out bowls of water, I have spritzed...I even bought a "Vicks cool mist humidifier". so far the only thing that works is bringing the humidity of the room the tent in in up, then the tent humidity rises...

THANKS wet! Will do. Peace, revbrimstone

why do people add garden lime to soil mixes (like happy frog)? I am starting my first grow and I have a lot to learn.

By the way, Internode, thanks for the swift reply! This is my first grow of marijuana. It is for medical purposes and I am down to 90 lbs so the swift reply is appreciated.

I did NOT prep the soil with any other mixes prior to planting. As far as I know it is. When the Happy Frog soil was dry it read 7.0. Yes, I have tested the run off water with regular ph testing liquid. The results were 4.5. my plants are in the flowering stage. Yes, I had been adding fox...

hi, I am looking for help with what seems like an unlikely problem. This morning I tested my soil, the ph read 5.5. I watered, having tested the water at ph 8.0. I then retested the soil and the ph was 4.5. This seems impossible. Has anyone else encountered this problem...