"Bill Beam" wrote in message
...
CO2 helps one thing grow in your tank and it ain't plants - it's algae

DO NOT USE CO2 - This is no troll - I've tried for one year now and it
makes black hair algae grow like mad - save yourself money and
trouble. Just don't do it.

I have been using CO2 for 6 months and have nice plants and far less of an
algae problem than I had before I started using CO2. In fact it isn't a
problem anymore.