The Planted Tank Forum - View Single Post - DIY CO2 -- A VERY simple reactor
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Old 01-04-2003, 06:23 PM   #1
peterinwa
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I read that you can make a very simple reactor with a plastic up upside down so that the bubbles rise up into it.

My question is why it said the cup should be clear so that you could see how many bubbles were being produced. I'd think it would fill up with air (CO2) and then just stay full?

So maybe they meant that you could start with it empty or empty it whenever you wanted and then see how fast it filled. That makes sense and is probably what they meant.

I'm posting just to be sure that's right. Please tell me if this simple reactor should have a little hole in it or some method of releasing the air. I'm assuming not, that it just holds it and the water below the air pocket extracts the CO2.

And as new bubbles come in old bubbles get pushed out. ???
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