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I want to automate my grow and was looking for suggestions on the following Heat/humidity controllers (possibly to control an exhaust fan for the grow room and a separate fan for the cool tube) CO2 controller. I want a system where I can up the CO2 enough to kill any nasties, so no...

sick plants! looks like nitrogen deficiency mainly. Wondering if this is normal in the large fan leaves during flowering? Some of them are dropping off. One of the leaves looks like either calcium or boron. Personally I'd go with calcium. Using fox farm nutes and I can't check pH until I'm in...

My setup - 600w digital Lumatek Ballast TT150 extractor fan Carbon filter and intake filter Powerplant Ultralite reflector currently 8 white widows of unknown sex 1.2m x 1.2m x 2m(high) cabinet...