I still have not added CO2 to my planted tank. I really want a semiautomatic system so I haven't even attempted the DIY systems. I have actually purchased two different regulators one off eBay and one off Amozon and both ended up being made in Japan and did not fit a US tank.
I really want to add CO2 because I want to save some of my plants that require higher CO2 and I would like to add some that require higher levels. I am wondering if anyone can recommend a good regulator? I am wondering if the systems offered by Doctors Foster & Smith are good systems. Any help would be appreciated.