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Re: CO2 injection

In a message dated 5/19/02 2:54:44 AM Central Daylight Time, 
Aquatic-Plants-Owner at actwin_com writes:

> It has to be the least costly injection device, if you are already
> running the filter, there's is nothing else to buy. Despite its
> relatively high efficiency, some folks don't like the noise when the
> bubbles hit the impeller.

>Not only do the filters make noise, but they can air lock if you are 
>running  a higher bubble count.  I was running a CO2 line into my Eheim
>2228, not only  did it make a lot of noise that I would think could
>damage the internals of the filter, but ultimately I had 2 incidents
>where the filter quit running. Lots of dead fish.  I would get a reactor
>if I were to do it again.


Don is absolutely right. Had the same thing happen to me 3 or 4 times.
Now I just run the CO2 line into an Aquaclear 201 powerhead mounted
close to the bottom of my tank. Not the most efficienct reactor but
gives me a consistent 15-20 mg/l CO2 level based on PH/KH table.