What is everyone using for CO2 diffusing? DIY reactor vs, ceramic/glass vs. ?
I was planning to build a DIY PVC reactor but came across http://www.dealextreme.com/p/aquarium-fish-tank-co2-atomizer-system-8-12mm-hose-107659 today. Seems kinda small to be effective enough to fully diffuse CO2 before it gets spewed out the other side.
Thoughts?