Chris was explaining to me how that works and if I remember right the ph controler turns on and off the co2 to keep it always at the same level. Don't know if I explained it right but it sounded like a really good way of doing it vs bubble counting.<a href=showthread.php?s=&postid=9834514#post9834514 target=_blank>Originally posted</a> by calvin415
Chris, so the pH controlled will just dump a bunch of CO2 in at once? How should it be setup? Have any pics?