The California economy is in trouble, but there's at least one industry in the state that's booming: medical marijuana.

Even though medical marijuana has been legal in California since 1996, the people working in the industry continue to operate in the shadows of legal uncertainty. Dispensary owners and growers live in constant fear of being raided by federal agents who maintain that marijuana, medicinal or otherwise, remains illegal under federal law. And for years, indoor marijuana growers have dropped big bucks on growing equipment while keeping mum about what exactly it is they've been growing.

In Oakland, however, things are changing. Earlier this year iGrow (now called weGrow) became the first hydroponics store to come out of the grow closet and proclaim to the world that they exist to help farmers grow more and better medical marijuana. iGrow's slogan? There's no such thing as a $10,000 tomato!

We went to iGrow, the first US hydroponics superstore catering explicitly to pot farmers, to learn more about the burgeoning medical marijuana industry in California.

Approximately 6.5 minutes. Produced by Paul Feine and Alex Manning.

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