How long until co2 is GONE ? - The Planted Tank Forum
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post #1 of 14 (permalink) Old 08-06-2017, 09:34 PM Thread Starter
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How long until co2 is GONE ?

Hello, I have a 20lb co2 tank on a 65 gallon I will be cranking out the co2 at right around 30 ppm. How long do your co2 tanks last and could you include a picture of your tank just to see how heavily planted it is just to give me an estimate at how long my 20lb will last. I'm just trying to figure out how long it will take to refill? Any co2 tank size will work I can just do some math to figure out.

1)Size of co2 tank?

2)Picture of tank?

3) How many BPS running?

4) Aquarium size?


Thanks skye
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post #2 of 14 (permalink) Old 08-06-2017, 09:43 PM
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20 pound tank.
Heavily planted as in no room for another stem.
BPS pretty worthless, 1.0 pH drop.
Tank feeds two an 80G & 70G.
This 20lb. fill has been in service for 8 months.
Getting ready to split the output again and set up a 33G.


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post #3 of 14 (permalink) Old 08-06-2017, 09:44 PM Thread Starter
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Quote:
Originally Posted by Maryland Guppy View Post
20 pound tank.

Heavily planted as in no room for another stem.

BPS pretty worthless, 1.0 pH drop.

Tank feeds two an 80G & 70G.

This 20lb. fill has been in service for 8 months.

Getting ready to split the output again and set up a 33G.


Could I get a quick pic?

Pretty please sugar on top?
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post #4 of 14 (permalink) Old 08-06-2017, 09:50 PM
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Journal is here. https://www.plantedtank.net/forums/10343961-post146.html


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post #5 of 14 (permalink) Old 08-06-2017, 09:53 PM
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Just set up a 5 lb 1.0 ph drop on 55 gallon tank and needle has not budged, has been running about 3 weeks now.

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post #6 of 14 (permalink) Old 08-06-2017, 09:54 PM Thread Starter
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Just set up a 5 lb 1.0 ph drop on 55 gallon tank and needle has not budged, has been running about 3 weeks now.

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Could I get a pic please?
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post #7 of 14 (permalink) Old 08-06-2017, 09:55 PM
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Could I get a pic please?
Of the tank or co2 reg. And cylinder ?


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post #8 of 14 (permalink) Old 08-06-2017, 09:55 PM Thread Starter
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Sorry, it won't let me view the link. It says their has been a problem to the forum.

Of the tank.

Last edited by Darkblade48; 08-07-2017 at 04:31 AM. Reason: Please use the edit function for back to back posts
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post #9 of 14 (permalink) Old 08-06-2017, 09:59 PM
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I'm running a 5lb. 10g aquarium. Still nearly full after 4-5months. Will be attaching a second needle valve for another nano soon. Don't see it affecting it much since it's a 5g I'm setting up.




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post #10 of 14 (permalink) Old 08-06-2017, 10:00 PM
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post #11 of 14 (permalink) Old 08-06-2017, 10:05 PM Thread Starter
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Originally Posted by Maryland Guppy View Post
20 pound tank.

Heavily planted as in no room for another stem.

BPS pretty worthless, 1.0 pH drop.

Tank feeds two an 80G & 70G.

This 20lb. fill has been in service for 8 months.

Getting ready to split the output again and set up a 33G.


Okay, let me get his right. You have a co2 tank connected to two tanks that are both larger than mine and a 1.0 ph drop. And your planning on adding a 33g and it's still going after 8 MONTHS. Wow

So that means I could run my 20lb for two years about?!
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post #12 of 14 (permalink) Old 08-06-2017, 10:14 PM
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Tank is about 3 or 4 months old now.

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post #13 of 14 (permalink) Old 08-06-2017, 10:57 PM
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Two years sounds about right to me. The method of diffusion will also affect things as a reactor is more efficient then an in-tank diffuser, but you could do the math the money really isn't the issue, it' preference.
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post #14 of 14 (permalink) Old 08-07-2017, 12:48 AM
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Quote:
Originally Posted by SKYE.__.HIGH View Post
Okay, let me get his right. You have a co2 tank connected to two tanks that are both larger than mine and a 1.0 ph drop. And your planning on adding a 33g and it's still going after 8 MONTHS. Wow

So that means I could run my 20lb for two years about?!
I use a reactor in all tanks. No bubbles in the tanks, no way.
Running @ low PSI, 12 PSI is the lowest I could get my regulator to stay.
Then after solenoid I have another mini regulator and all tanks are run @ 3 PSI.
3PSI was able to push through all the check valves I use.

Sorry but the only bubbles in my tanks better be plants pearling!


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