Not clear how large your tank is? For my 55 gal, I needed two DIY 2-liter
bottles. I have since switched to compressed gas.

also the bio-wheel on the emperor will cause you to lose a lot of co2. Best
if you don't have such (i.e. another type of filter) or at least keep the
water level filled up high to reduce the splashing of water. Possible to
remove the biowheel,; never have done that; of course that removes some of
your bio filtration.

Bob Alston
"Bob A" wrote in message
...
First I want to thank everyone who has helped me get started on DIY CO2,
and
especially Kush who told me I might be using water that was too hot...
that
was in fact the problem.

I also read Leigh's response to someone regarding doubling the amount of
mixture in the bottle, and did that, and it gave me more frequent bubbles
than I had had, but the pH didn't go down.

I'm getting a bubble about every 3-4 seconds, piped into the intake of my
Emperor 400 power filter. My CO2 normally has been about 2-3, now it is
staying a fairly stable 8ppm (KH 2 & pH 7).

I am even seeing a little pearling which is very rewarding. My question
is,
should I be satisfied with this? I would love to see more pearling, but I
don't necessarily want extra-rapid plant grown... I would like them to
grow
of course, but.... I think you understand.

Also, I'm suspecting the Emporer is not making the best use of the CO2 I'm
getting. Are there any suggestions that aren't (1) very expensive (2 and
more important) won't look ugly in my tank.

thanks so much,

bob