How long will 10lb CO2 tank last? - The Planted Tank Forum
 
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post #1 of 13 (permalink) Old 04-05-2004, 04:01 PM Thread Starter
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For people with a 10 lb tank please tell me your bubble per minute rate and how long your CO2 tank lasts you.

Thanks
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post #2 of 13 (permalink) Old 04-05-2004, 04:11 PM
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The answer is dependent on many things:

fish tank size,
surface agitation,
reactor,
pH
KH
etc.

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post #3 of 13 (permalink) Old 04-05-2004, 04:19 PM Thread Starter
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I should have expanded a little more on my question.

With my tank and setup I'm using CO2 at a rate of 30 bpm with the results I want. And was wonder how long I can expect my 10lb tank to last.

Since everyone uses a different rate with there tanks, I just want to know what other peoples BPM rate is for there tanks and I'll do the math to figure out how long my tank is going to last.

Thanks[/b]
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post #4 of 13 (permalink) Old 04-05-2004, 04:27 PM
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How big is your tank?

The only number i can throw it is 'probably 6-8 months'. I've got a 75 gallon tank, about 35-40 bps, and after 3 months my tank still has plenty of CO2 in it.
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post #5 of 13 (permalink) Old 04-05-2004, 11:27 PM
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Quote:
Originally Posted by usersrdum
I should have expanded a little more on my question.

With my tank and setup I'm using CO2 at a rate of 30 bpm with the results I want. And was wonder how long I can expect my 10lb tank to last.

Since everyone uses a different rate with there tanks, I just want to know what other peoples BPM rate is for there tanks and I'll do the math to figure out how long my tank is going to last.

Thanks[/b]
Sorry, I don't do pressurized CO2 so I can't answer this post...but to let others know since you are not getting the answer to the question you are asking...he doesn't need to specify his tank volume, ph, kH, surface agitation, reactor... All we need to know is what he said, "with my tank and setup I'm using CO2 at a rate 30bpm with the results I want." Therefore all he needs to know is other peoples CO2 tank lbs, their bpm, and how long it lasts.

Hope this can clarify.
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post #6 of 13 (permalink) Old 04-05-2004, 11:30 PM
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On my 90 gallon a 2 kilo bottle, which will only hold 1.7kilo max lasts around 4-6 weeks with a bubble count of 30-40 bpm. Lot of plants and metal halides help chew up the CO2.

Paul
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post #7 of 13 (permalink) Old 04-05-2004, 11:32 PM
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Quote:
Originally Posted by usersrdum
I should have expanded a little more on my question.

With my tank and setup I'm using CO2 at a rate of 30 bpm with the results I want. And was wonder how long I can expect my 10lb tank to last.

Since everyone uses a different rate with there tanks, I just want to know what other peoples BPM rate is for there tanks and I'll do the math to figure out how long my tank is going to last.

Thanks[/b]
I say about 7-9 months....

120g, Flourite & Sand. DIY Stand and Canopy. CF lighting 3wpg, Pressurized C02, DIY reactor. 2-XP3's, 500watt heater.
Heavily planted
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post #8 of 13 (permalink) Old 04-06-2004, 05:56 AM
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I have a 10lb on a 20 gal going 30bpm.I'm now in month 14. :lol:

I've been checking it alot lately though expecting it to run out soon.


Ernie
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post #9 of 13 (permalink) Old 04-07-2004, 02:20 AM
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i have a 10gal and i am thinking about co2 and a reactor... DIY co2 bottle and i have no idea what mixture.... i ahve 2 compact 10watt flourescent bulbs..
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post #10 of 13 (permalink) Old 04-07-2004, 02:46 AM
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Quote:
Originally Posted by Newkidonthetank
i have a 10gal and i am thinking about co2 and a reactor... DIY co2 bottle and i have no idea what mixture.... i ahve 2 compact 10watt flourescent bulbs..
You are mistaken. This is dealing with a 10 pound CO2 canister. This is a pressurized system, not DIY.
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post #11 of 13 (permalink) Old 04-07-2004, 03:28 AM Thread Starter
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Thank for the reply's. And thanks Rolo737 for clarifying my question for everyone.
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post #12 of 13 (permalink) Old 04-07-2004, 12:11 PM
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oh sorry
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post #13 of 13 (permalink) Old 04-07-2004, 01:37 PM
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I agree with E Simpson, I see 8-10 months out of my 5 lb bottle at 20bpm so in a good, tight, leak-free system you should easily see well over a year's use out of a 10lb cylinder at 30bpm. Water parameters, reactor design, plant usage, etc. doesn't affect the delivery rate in the needle valve so a given flowrate such as 'bubbles per minute' is generally accurate (unless you've got some funky bubble counter with huge or really small bubbles, I guess).

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