CO2 dispersion - The Planted Tank Forum
 
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post #1 of 8 (permalink) Old 12-05-2017, 08:29 PM Thread Starter
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CO2 dispersion

Just added a CO2 system yesterday on my 20g. Dialing my diffuser and CO2 volume with a drop checker. Yesterday I had it at 1 bubbles/s and increased to 1.5 bubbles/s over the course of the day. This morning went up to 2 and just increased to about 3 bubbles/s.

Initial research said 1 to 2 bubbles per second. Obviously this depends on the tank size and plant type/number. I do have fish so ive been increasing slowly so they dont shock.

How many bubbles/s should I expect before the drop checker gives me the green? Any average?
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post #2 of 8 (permalink) Old 12-05-2017, 09:35 PM
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No average. With the same bubble count I got 50% variation from the same tank, regulator, hose length, just different check valves. imagine when you change other things on the system....
BPS is only comparable between your system readings, if then.

What is the color of your diffuser at 2 bps? Go slow due to lifestock present, 1 exbra bps per day and monitor non-stop your fish. It takes a while for fish to adapt to live in higer conc. of CO2. But they do adjust their bloodworks and live well, just give them some time.

On hiatus till later this year
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post #3 of 8 (permalink) Old 12-05-2017, 10:25 PM Thread Starter
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Yeah I figured there would be a variance. Did not know it would be that wide though. Ill keep going slow (1bps/day) and keep an eye on the fish. They all look good right now and all are accounted for.

Also, I put my diffuser right under my HOB. BUT the bubbles float up before getting caught in the flow. They then seem to move down 3/4 of the tank and off to the sides. I see some floating on the surface as well. This okay?
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post #4 of 8 (permalink) Old 12-05-2017, 11:30 PM
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Get a reactor or inline diffuser :]
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post #5 of 8 (permalink) Old 12-05-2017, 11:37 PM
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Quote:
Originally Posted by ILikeRice View Post
Get a reactor or inline diffuser :]
How's he gonna do that with an HOB?

There' no reason to do that on a 20g. An in tank diffuser works fine. Don't worry about some of the bubbles going to the surface. You don't need 100% efficiency, you should be able to get the drop checker in the green after 2-4 hours into the photo period.
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post #6 of 8 (permalink) Old 12-05-2017, 11:38 PM Thread Starter
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I think my wife would kill me if another fish item showed up at the door. Maybe in the future but for now I am only running a HOB filter and don't have the space to set up a canister filter. Guess I will just have to be inefficient for now
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post #7 of 8 (permalink) Old 12-05-2017, 11:41 PM
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If you look at my first tank in my sig you'll see my in tank diffuser on the left and it was a 4-ft tank. the plants pearled all the time and the tank was super clean. ADA uses in tank diffusers on 6 ft tanks. For your 20g its more than enough.
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post #8 of 8 (permalink) Old 12-05-2017, 11:56 PM Thread Starter
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Cool. Thanks for the clarifications, guys.
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