Best DIY cO2 Diffuser - The Planted Tank Forum
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post #1 of 33 (permalink) Old 01-22-2011, 06:24 PM Thread Starter
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Question Best DIY cO2 Diffuser

I have a 10 gallon tank that I want to start up a DIY co2 system. I'm confident with everything except the diffuser at the end.

Would it be acceptable to attach the exit line to the intake of my Aqueon quiteflow 10? I want something that's simple and cheap...preferably DIY if possible.

Would purchasing a wooden airstone work just as well?

Thanks
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post #2 of 33 (permalink) Old 01-22-2011, 07:10 PM
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I use a piece of a bamboo chopstick. Works very well and doesn't look bad. It's on the first page of the link in my signature. Check it out!

"Simplicity is the ultimate sophistication." -- Steve Jobs

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post #3 of 33 (permalink) Old 01-22-2011, 09:12 PM Thread Starter
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wow that's nice. Does it have to be a bamboo chopstick or can it be just a regular cheap one from a chinese restaurant. i just made a trip to walmart (my suitemates wanted to go) and i picked up some tubing, sugar, yeast, baking soda, valve check, and two small airstones.

I spent $11 in total so if this works im going to be very happy.


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post #4 of 33 (permalink) Old 01-25-2011, 07:31 AM
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I built this one today. It cost me about $8 to make, looks like a ceramic one, doesn't take up a lot of space and produces fine bubbles. I stole this design off someone from youtube.

Easy to make, vinyl hose, a plastic syringe, 3 cotton circle facial things, and a suction cup.
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post #5 of 33 (permalink) Old 01-25-2011, 08:14 AM
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Has anyone tried glueing the end of the tube shut and then making a tiny pin hole to let the co2 out? Just wondering if that works.
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post #6 of 33 (permalink) Old 01-25-2011, 01:30 PM Thread Starter
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Johnny I think I have seen that design. Where did you find the plastic syringe? The only thing I was confused about is i thought they made the rings from cotton balls that he jammed up into the tube or something.


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post #7 of 33 (permalink) Old 01-25-2011, 01:58 PM
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Quote:
Originally Posted by AquaStudent View Post
I have a 10 gallon tank that I want to start up a DIY co2 system. I'm confident with everything except the diffuser at the end.

Would it be acceptable to attach the exit line to the intake of my Aqueon quiteflow 10? I want something that's simple and cheap...preferably DIY if possible.

Would purchasing a wooden airstone work just as well?

Thanks

I use a wooden airstone and it works fine. But I wouldn't mind trying out the bamboo chopstick idea when the airstone has outlived its usefulness.
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post #8 of 33 (permalink) Old 01-25-2011, 02:20 PM
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JWhere did you find the plastic syringe?
Any medical supply store. They're all over the place, and the syringes are dirt cheap. Other uses for them in our hobby including measuring out ferts and other chems, spot-dosing plants for algae outbreaks, and squirting soapy water on CO2 setups to find leaks.
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post #9 of 33 (permalink) Old 01-25-2011, 06:16 PM
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Originally Posted by AquaStudent View Post
Johnny I think I have seen that design. Where did you find the plastic syringe? The only thing I was confused about is i thought they made the rings from cotton balls that he jammed up into the tube or something.
The plastic syringe i got at petco in the dog medicine section for $2.50 the 10 ml. i also had to put the airline in boiling hot water to slip it over the nipple of the syringe. I got the piece of clear vinyl tubing from home depot, 5/8 x 1/2 in 10ft for $5 ( in case i wanna make extras).

The cotton balls thing is kinda tricky. In that person's demo they just took the circle cotton pad and cut it in half and shoved as many they could fit into the hose.

I Just cut maybe about a centimeter thick straight line on three of the cotton pads, then and only using the center piece lines i cut, i wrapped them very tight and stuck into the tubing. Shoved the tubing into the syringe grab a suction cup and your ready to go. It seems like it takes a little while for it to get going, think it builds alot more pressure to shove through the cotton .

Chopstick seemed to produced large bubbles every few seconds for me. I like wooden airstone but the fineness of the bubbles seems to decrease after awhile.

Good luck if you decide to go this way, you won't regret it if you make it properly, I haven't after a day and a half lol
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post #10 of 33 (permalink) Old 01-26-2011, 12:14 AM
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I just made a DIY Co2 and this is what im using. Nice because it adds extra filtration. http://www.petco.com/product/13796/H...FishFC_Filters
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post #11 of 33 (permalink) Old 01-26-2011, 12:35 AM
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Zmuda, that is exactly what I use. It works really well and is cheap.
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post #12 of 33 (permalink) Old 01-26-2011, 12:36 AM
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Originally Posted by johnnygstacks View Post
I built this one today. It cost me about $8 to make, looks like a ceramic one, doesn't take up a lot of space and produces fine bubbles. I stole this design off someone from youtube.

Easy to make, vinyl hose, a plastic syringe, 3 cotton circle facial things, and a suction cup.
do you have the youtube link?
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post #13 of 33 (permalink) Old 01-26-2011, 12:45 AM
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Zmuda, that is exactly what I use. It works really well and is cheap.
Good, i just got it like an hour ago and am mixing the suger and stuff now. I glad to know it works good.
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post #14 of 33 (permalink) Old 01-26-2011, 12:48 AM
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do you have the youtube link?
http://www.youtube.com/watch?v=2y2QhbVo6HI&NR=1
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post #15 of 33 (permalink) Old 01-26-2011, 12:59 AM
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Good, i just got it like an hour ago and am mixing the suger and stuff now. I glad to know it works good.

check this out http://www.aquaticplantcentral.com/f...2-reactor.html
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