I'm looking into getting a co2 system for my 40 breeder. Eventually I'll be transfering all my plants and fish to a 75 gallon. What is the most cost-effective co2 kit I can get?
From what I'm gathering, I need a tank, regulator, needle valve, and diffuser. This seems to be the tank and regulator, would this also be the needle valve too and then I'd just need to make a homemade diffuser?
I would go with a Milwualkee (sp) regulator. Granted it isnt the best but will do the job, comes with Bubble Counter, adn everything else. Water-testers.com
Then you need to get a Cyclinder, co2 tubing, Diffuser (eBay) and Drop Checker with 4dKh solution (eBay)
Order this. It comes with the tubing, check valve, bubble counter, full reg setup... Everything you need minus the diffuser for well under 100$. I have it, it's great.