what is the best book and or video you have purchased to learn about growing especially with hydroponics?????? trying to get my card but before i do i want to learn as much as possible???
i got in a car reck last november and had some physical therepy and chiropractic but my back has been hurting again, as i work in construction field that i am constantly lifting heavy materials. i would really like ommp to med but not sure if i can qualify. any advice for a more ommp friendly...