Hello,
I'd like to ask you about my grow room's kit.My box is 1.2 x 1.2 x 2m with 600w hps, 5 inch cooltube and extractor fan 5 inch ( 250-350m/3).I'm a little worried about my cooltube,maybe I have to get 6 inch ? Sorry for my questions but this is my first growing.Maybe you can advice what...