There are a few CO2 test kits on the market. I'm not referring to the familiar drop checker. As I understand it, the CO2 test kits measure carbonic acid by titrating against sodium hydroxide and using phenolphthalein to indicate when the pH is 8.2 and above. The colour changes from...
There's a new all-in-one CO2 kit (similar to the Pierce or ADA Advanced) from Fluval that just came out recently.
- Regulator Valve
- 88g Disposable CO2 Cartridge
- In-Tank Micro Bubble CO2 Diffuser
- External Bubble Counter
- Hanger Bracket
The good thing is...