"Rick" wrote in message ...
"Scott Rogahn" wrote in message
...
I have read several post were people add the CO2 into the intake of the
canister filter instead of using a diffuser. I have just added an Eheim
2215 with a surface extractor. Would adding the CO2 to the intake have
any
real advantage over the Hagen diffuser I am presently using. It is the
diffuser sold with the natural CO2 system, but I am using it with a 5lb
bottle.

What is the best way to do this? Should I drill a hole in the intake and
route the hose it there? If I did this I think it would be difficult to
see/count the bubbles.

If I anchored the hose below the intake I could count the bubbles, but
they
may not reliably get sucked into the filter.

Any advice is appreciated.
Scott


Take the CO2 tubing and squeeze it between the plastic bars of the
canister filter intake strainer. Make sure the tubing runs on the
back side of the intake tube so no extra tubing will be visible. You
will still be able to count the bubbles by looking at them coming up
inside the strainer.
No need for a reactor at all.

Some filters may collect the CO2 inside the canister. I hear some
Eheims are prone to that.
The bubbles should completely disolve before hitting the impeller of
that canister anyway.