POT TV – Addison Demoura of Steep Hill Lab explains the process of testing cannabis potency using a gas chromatograph. Filmed at the Treating Yourself Expo in Toronto on May 27, 2012.

This video will show you how to check or change the pH of your water before using it to water your plants. For soil an optimum pH is between 6.0 and 7.0, or about a 6.5 For hydroponics an optimum pH is between 5.5 and 5.9 Attention!! a small change in pH ,even

weedmaps.com – Join the guys as they explore the Larry OG from Evergreen Compassionate Health Center in Los Angeles, CA. This flower has been tested by SC Labs. Music Artist El Centro Song: Disaster All

An indoor growing room that had no bug problems and used the heat from the lighting to help heat the room in the winter, easy to create. Keeping a circulating flow of cold air in and hot air out keeps the bugs away.

”Short series continues leading up to pt 4.” –Marijuana-

Join Tang and world renowned botnoist, Steve Tuck, as they take a tour of Santa Cruz Labs in Santa Cruz, California. Take a deeper look into the safer and scientific side of cannabis.