"jaap" wrote in message
t.net...
thanx iain,

so you agree that this setup will enhance the efficiency?


thx,
teizman

Anything that will dissolve more of the CO2 produced will do that. If you
see bubbles of CO2 rising off the plate to the surface then some is being
wasted for sure. However, before you start cutting hoses & fiddling about
with the Eheim maybe see if there is another way you could trap the excess
CO2 & either let it sit in some kind of Bell chamber or suck it down into a
cannister. Might be easier to experiment with. That said, what you propose
has the added benefit of removing the plate from the tank.