Question about my DIY CO2 reactor - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 08-09-2012, 09:00 PM Thread Starter
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Question about my DIY CO2 reactor

I am finally putting together my Edge I got on clearance months ago at Petco and I using this DIY reactor made from a GE Smartwater filter and I was wondering if I could do the following:



On the intake where I insert the co2 tubing can I split it in two and use the reactor for pushing co2 and o2 into it? My idea is to use unit with an air pump when lights are off and co2 when they are on running through the same line.
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post #2 of 5 (permalink) Old 08-09-2012, 11:46 PM
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Are you using pressurized carbon or yeast/sugar?

You can turn off pressurized carbon, and switch the lines over to an air pump at night, if you want.
Yeast/sugar cannot be turned off.
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post #3 of 5 (permalink) Old 08-10-2012, 12:17 AM
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When you are feeding it with air it may build up a big air bubble in the top. Then when you start adding CO2, you may get less CO2 dissolved in the water. I'm not sure that will have an effect of how much CO2 dissolves, but, for sure a big air bubble will build up in it. Where else would it go, since very little air can dissolve into the water?

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post #4 of 5 (permalink) Old 08-10-2012, 04:06 PM Thread Starter
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Quote:
Originally Posted by Diana View Post
Are you using pressurized carbon or yeast/sugar?

You can turn off pressurized carbon, and switch the lines over to an air pump at night, if you want.
Yeast/sugar cannot be turned off.
I am using pressurized CO2.

Quote:
Originally Posted by Hoppy View Post
When you are feeding it with air it may build up a big air bubble in the top. Then when you start adding CO2, you may get less CO2 dissolved in the water. I'm not sure that will have an effect of how much CO2 dissolves, but, for sure a big air bubble will build up in it. Where else would it go, since very little air can dissolve into the water?
If I add some bio balls inside the filter, would that help?
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post #5 of 5 (permalink) Old 08-10-2012, 07:23 PM
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I'm not sure adding an air pump to your reactor is going to be of much benefit. Oxygen doesn't dissolve all that readily and the atmosphere is 21% O2 so you're adding a relatively small amount of a gas that won't dissolve that well. Using compressed O2 would probably work, but you would more than likely be better served by using some method of increasing surface agitation at night such as a powerhead directed at the surface or an air diffuser.
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