I'm not sure what the difference is here to the other external reactors I've seen around but in general you can even simplify it further. All you need is for the tube to get bigger so that the boyancy of the CO2 bubbles are able to fight against the downward flow of the water until they are very small or completely dissolved. You can do this in a number of ways and the CO2 can even be fed directly into the intake strainer in your tank, once it reaches the enlargement and slower water flow it will work just the same as if when fed into the reactor itself.
I like the idea of using threaded fittings on one side so you can access the inside of the reactor.
Giancarlo Podio
I like the idea of using threaded fittings on one side so you can access the inside of the reactor.
Giancarlo Podio