CO2 kits for aquariums with everything included. From Dennerle and Fluval.

A bubble counter determines how much gas is going through the airline. It is counted in terms of bubbles per minute (or other period of time). The bubble counter is located between the CO2 regulator and reactor in a CO2 System.

We have several sizes of CO2 bottles from ista. For the Hydor CO2 Green NRG Advanced use the Hydor NRG CO2 Disposable Cartridge. For CO2 systems using the American standard threaded regulator use the Red Sea Cylinder Bottle.

CO2 reactors are commonly used to diffuse CO2 into freshwater planted aquariums. In reef aquariums a CO2 reactor may be used to diffuse CO2 into a calcium reactor.

We carry a wide variety of CO2 regulators and controllers from ista as well as the AquaticLife CO2 Regulator w/ Integrated Solenoid Valve and the Milwaukee Instruments MA957 CO2 Regulator w/ an integrated Solenoid Valve and Bubble Counter.

A solenoid valve turns on and off the supply of gas to a CO2 reactor or calcium reactor. When using a pH controller in conjunction with a CO2 reactor, changes in pH will turn the solenoid valve either on or off according to settings.

To have a completely automated aquarium CO2 system you will need a controller such as the Milwaukee Instruments pH Monitor/Controller, SMS122.