Chris Cantella, 46, the cultivation manager at Avalon Wellness Center, tends to his indoor crop of marijuana in the Closed Grow Environment room at the Avalon Wellness Center in Long Beach on March 28, 2012. Cantella, a licensed California general contractor, set up the grow room and installed all the high pressure sodium lights, overhead, air conditioning and emergency Co2 early warning system at the center. Avalon Wellness Center is a medical marijuana dispensary.