Has anyone tried this? and does it work?
Hagen Plant Grow Natural System with CO2 - Live Plant Care - PetSmart
Hagen Plant Grow Natural System with CO2 - Live Plant Care - PetSmart
it's basically just a prepackaged diy system that you can do yourself for much cheaper. I just use a 2 liter soda bottle and mix the yeast and sugar together and run an airline with a micro bubble stone into the tank. works fine for me and my plants. i got a 2 lb block of active dry yeast from costco for just a few bucks and it should last me a year or more.