How much co2 on a 12g long? - The Planted Tank Forum
 
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post #1 of 8 (permalink) Old 03-17-2013, 09:48 PM Thread Starter
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How much co2 on a 12g long?

I'm thinking due to the 36" length, the 12g allows for much more plants than a typical 10g-ish traditional sized tank, which begins to take it out of "nano" territory. So I'm wondering how long a 5lb tank might typically last on a 12 long?
Would you go smaller?

-dennis
12g Long Shrimp Tank
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post #2 of 8 (permalink) Old 03-17-2013, 10:16 PM
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Running a bubble count of 1bps-2bps it should last several months.
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post #3 of 8 (permalink) Old 03-17-2013, 10:29 PM
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30ppm
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post #4 of 8 (permalink) Old 03-18-2013, 02:34 AM Thread Starter
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Quote:
Originally Posted by In.a.Box View Post
30ppm
newb here. What does this mean?

-dennis
12g Long Shrimp Tank
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post #5 of 8 (permalink) Old 03-18-2013, 03:11 AM
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Quote:
Originally Posted by d2mini View Post
newb here. What does this mean?
30 ppm, or 30 parts per million. It is the only definitive measurement of CO2 concentration in a tank. BPS is not a good measurement. Too many factors affect total concentration.

The best way to determine if you're around 30 ppm is using a drop checker, a 4dKh solution, and a pH reagent.
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post #6 of 8 (permalink) Old 03-18-2013, 08:15 AM
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The best way is to observe the plants and adjust as needed.

The OPs original question was how long would a 5lb tank last on a 12g, I am going to say over 6 months maybe even a year.
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post #7 of 8 (permalink) Old 03-18-2013, 12:44 PM Thread Starter
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Thanks guys, appreciate it.

Since it's my office (work, not home), i'm trying to keep things as neat and hidden as possible. Maybe I'll go for a 2.5lb tank instead. 3+ months is a good run.

-dennis
12g Long Shrimp Tank
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post #8 of 8 (permalink) Old 03-19-2013, 01:00 AM
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Get a drop checker. The more co2 the better but make sure your fishes don't gasp for air.
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