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Re: Aquatic Plants Digest V4 #766

In a message dated 1/7/01 3:52:20 PM Eastern Standard Time, 
Aquatic-Plants-Owner at actwin_com writes:

 Date: Sun, 7 Jan 2001 12:05:22 -0500
 From: "Haydt" <haydt at voicenet_com>
 Subject: Re: CO2 How Long Should It Last
 > > If you are continuously bubbling CO2 (24-7) then 3 months is pretty
 > > IMO. The average for a 20# tank seems to be about a year, although this
 > A 5lb tank lasts for at least 6 months on my 75g tank.   CO2 is on
 > continuous.   If it's only lasting 3 months, there is likely to
 > be a leak.
 I've had my 5lb bottle hooked up on my 55 gallon for about 4 years.  At one
 bubble every 2-3 seconds 24-7, the tanks have lasted 6 months at minimum.  8
 months maximum.
 Take a little soapy water and a paintbrush and check for a leak.
 John Haydt
 La >>

I reply:

Sounds right given your slow bubble rate. My setups go anywhere between 2-3 
bubbles/sec but are not on 24/7 because I use controllers on my 3 planted