Adding CO2 to a Planted Aquarium
The illustration above shows a simplified view of the setup: 800 PSI CO2 gas passes from the CO2 tank, through a dual gauge regulator where the pressure is reduced to about 15 PSI, then to a solenoid valve that is turned on and off by the
pH meter/controller, and then to a metering valve for fine control, producing about two bubbles per second in the aquarium.
Components of an aquarium with CO2 injection:
Experimental CO2 Generating System
Add a reservoir to the traditional yeast CO2
generator for a steadier CO2 supply to your planted aquarium. This
simple system can be placed under electronic control if desired.