Need ideas to get rid of the CO2 mist bubbles....
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Old 09-08-2013, 07:03 PM   #1
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Need ideas to get rid of the CO2 mist bubbles....

I am using a Ista max CO2 reactor, the small one and about to switch to the large one. Well, with the amount of CO2 I injected and the flow rate of my Eheim 2217 filter with a badly deformed impeller, by the end of the day, the CO2 would gradually build up by more than half of the CO2 chamber. The reduced flow rate, for whatever the reasons, can't dissolve the CO2 fast enough than it is being injected. I am about to switch to a Rena Flistar XPM filter with over 350+ gph flow rate. On Tuesday. This would only give me sufficient flow rate to equally mix in my CO2. So that I won't get half of the reactor trapped with more CO2 than water. I am pretty sure I would still get CO2 mist bubbles coming from the outlet pipe.

Are there ways to trap these bubble mists before they enter into my tank? The Rena filter comes with a standard spraybar. How about daisy chain my 2 Ista max reactors and only injecting CO2 to the large one. Then, the water would by pass the small one before returning back to the tank.

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Old 09-08-2013, 10:10 PM   #2
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If you haven't bought the large one yet... wait. Look into building your own. Either a Rex style or a Cerges Style. I have the medium Ista and it is the worst piece of CO2 equipment I have. I built my own Cerges and Rex Griggs style reactors and they are both better, run quieter, and NO MIST in my tanks.
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Old 09-08-2013, 11:50 PM   #3
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I'll second the Creges reactor (haven't tried the griggs). I have one, and there are zero bubbles, and it cost me < $20 to make.
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Old 09-09-2013, 12:21 AM   #4
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The ISTA reactor works fine for lower flow rates, like a 2213 for instance, but it doesn't scale up too well. Either the cerges or rex grigg will work, but if you make a Rex Grigg, make sure you use large enough diameter piping or a long enough reactor tube to account for your flow rate.
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Old 09-09-2013, 07:59 AM   #5
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Even though I have yet to try a reactor, only various diffusers, I would just build one. It's cheap, simple, and have proven itself to work well. I just don't have the space to try it out in my stand.
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Old 09-09-2013, 08:21 PM   #6
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I just built a Rex griggs style reactor and I have 0 bubbles coming out. Its also extremely quiet. I have it in my bedroom and I can't even tell its running.
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