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I just realized something, theres no beginner forum. I think that needs to change.

hello i would like to start by saying a common problem with rooms running constant exhaust is a lower concentration of co2, not as low as a room with no exhaust but not as good as a sealed room with co2. the problem some people have with sealed rooms with co2 is excessive temperatures. i believe...

Hello I am wondering if anyone could help me. I want to know what is the threshold for photoinhibition to occur in mj. i will accept measurements in lux, foot candles as well as lumens per square foot. i read somewhere it is around 18000 lumens per square foot or foot candles, but i want to be...

hey im gompers