Help me build/find a complete automatic CO2 system!

As someone who jumped into a high-light tank as a first planted tank, I'll gladly say that it's better to go easy on the light at first. Most of the more common plants will handle lower light levels ok (they won't look their best, but they'll survive), and that will allow you to get a good feel for what's going on with the tank before you crank it up all the way.
 
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