Ive searched and cant find it...how to diffuse a DIY Co2? - The Planted Tank Forum
 
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post #1 of 14 (permalink) Old 10-20-2010, 11:13 PM Thread Starter
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Ive searched and cant find it...how to diffuse a DIY Co2?

I have a typical DIY Co2 system with the 2L bottle, yeast and so on. My question is how do I diffuse the bubbles. Ive heard put the tube near the filter intake, hook it up to a powerhead...I am pretty handy. What should I do???

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post #2 of 14 (permalink) Old 10-20-2010, 11:35 PM
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Not my photo. But since your handy, should be very simple to picture this as an actual product that can be made.


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post #3 of 14 (permalink) Old 10-20-2010, 11:44 PM Thread Starter
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This seems relatively simple. However, what is the tube on the left and what preceeds it with the cord?

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post #4 of 14 (permalink) Old 10-21-2010, 12:00 AM
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From the gas separator, the tubing can go to a number of options: powerhead, filter intake, air stone, or an actual diffuser. A cheap CO2 diffuser from ebay will cost you less than 10 bucks with shipping. I was hesitant about using one with a DIY system due to concerns about pressure, but the cheap plastic/ceramic diffuser i bought off ebay worked just fine after enough pressure built up.
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post #5 of 14 (permalink) Old 10-21-2010, 12:00 AM
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The cord to the unit is a power head. The Silicon tubing goes directly into a drill-out size hole into the Reactor. Notice the tiny hole, look at it carefully. It overlaps the power head and goes into the Reactor. From there, the gas just sucked all over which then the power head picks it up and shoots it out.

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post #6 of 14 (permalink) Old 10-21-2010, 12:09 AM Thread Starter
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I was under the assumption I could go right from the 2L bottle to the diffuser, with a check valve inline. Can the tube go directly into a powerhead or into the filter basket in my AC50.

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post #7 of 14 (permalink) Old 10-21-2010, 12:21 AM
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I seen DIY Co2 Yeast system go from a single 2L botter to a Power head/Filter. As long as the Yeast Fermentation doesn't rise too high and out the cap where the tubing goes through then that's fine.

People use two 2L bottles to prolong the life of the yeast mixture. Another added 12oz bottle is used for gas exchanges as pictured above. Only the co2 gas will be here in and will exit directly out from the tubing straight to reactor or a powerhead/filter.

There are different ways to go about this. All will work fine.

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post #8 of 14 (permalink) Old 10-21-2010, 12:21 AM Thread Starter
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Can I go right from the bottle to a Hagen/Nutrafin Ladder diffuser?

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post #9 of 14 (permalink) Old 10-21-2010, 12:25 AM
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I take it you can, I'm not familiar with that setup ladder but I have seen fish shop used them. And that's all the co2 gas goes through. Not sure how efficient that ladder goes as far as diffusing co2 gas.

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post #10 of 14 (permalink) Old 10-21-2010, 12:32 AM Thread Starter
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Not sure myself. Gonna try it though. Is there a way to measure the Co2 in your tank? Other than the health of your fish...

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post #11 of 14 (permalink) Old 10-21-2010, 12:32 AM
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Quote:
Originally Posted by we4wieners View Post
Can I go right from the bottle to a Hagen/Nutrafin Ladder diffuser?
You can but, you still at least, want the check valves. With the check valves in place, water from the aquarium can't back up into the 2 liter bottles when the CO2 pressure drops.
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post #12 of 14 (permalink) Old 10-21-2010, 12:38 AM Thread Starter
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I have a check valve. I was also suggested to use a syringe along with the check valve... http://www.aquaticplantcentral.com/f...s-recipes.html

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post #13 of 14 (permalink) Old 10-21-2010, 01:17 AM
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as far as i can tell, that syringe does what the gas separator does - it keeps any of the muck that accidentally enters the line (from shaking, or dropping, or knocking over, etc.) from ending up in your tank. it ends up in the 2nd bottle instead. it's honestly nothing to stress out about - it's an easy, cheap, fast setup.
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post #14 of 14 (permalink) Old 10-21-2010, 01:19 AM Thread Starter
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Quote:
Originally Posted by kevmo911 View Post
as far as i can tell, that syringe does what the gas separator does - it keeps any of the muck that accidentally enters the line (from shaking, or dropping, or knocking over, etc.) from ending up in your tank. it ends up in the 2nd bottle instead. it's honestly nothing to stress out about - it's an easy, cheap, fast setup.
Cool, Thanks !!!

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