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Old 07-30-2011, 03:21 PM   #1
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Atomic CO2 Diffuser technical advice

I have a 32 gallon aquarium and if i want to connect a outline/inline type of diffuser for esthetic reason. its say, i need 30 psi.

here the diffuser Atomic Inline CO2 Diffuser 8/12mm | Green Leaf Aquariums

1. Is that a lot?
2. do I realty need 30 psi?
3 if so, is there others of the same type i can use that don't have the restriction
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Old 07-30-2011, 03:49 PM   #2
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There are many plans out there to make your own inline diffuser. 30ppm is a good target for CO2 injection it does create a good environment for optimum plant growth. Optimum growth means algae can not compete and you have a pretty tank. You will also need a good fert plan to complement the light and CO2.
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Old 07-30-2011, 04:11 PM   #3
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in canada, making your own stuff cost more then buying one all made online. And when i'm reading about co2 most people have very low ppm, maybe around 5ppm.
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Old 07-30-2011, 04:41 PM   #4
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Or maybe i'm confuse. It say i need 30 psi to function but is it getting more or less 5psi outcomes in my tank if i want? Is it just a pressure buildup it need?
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Old 07-30-2011, 04:57 PM   #5
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We are talking to different things here psi is the volume of gas in the diffuser and out of the regulator, I am talking dissolved amount of gas in the water. 5 psi on the low end after the needle valve sounds about right to me.
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Old 07-30-2011, 05:36 PM   #6
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Confused again, your saying that having 5psi coming out of the that inline diffuser is possible?
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Old 07-30-2011, 07:21 PM   #7
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Into the diffuser, I do not think the out would be measured in PSI, it would be a matter of how much gas would be dissolved in the water at that point.
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Old 07-30-2011, 07:24 PM   #8
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I think we're all confused at this point. Save your money.. build one. I built one for about $10. 5-10psi leaving the regulator is about where you want your output to be. 35-40ppm is, what I've found, to be about the best range for co2 in the tank. That's measured by a drop checker, kh/ph test, or ph regulator.
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Old 07-30-2011, 07:27 PM   #9
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Quote:
Originally Posted by mfdrookie516 View Post
I think we're all confused at this point. Save your money.. build one. I built one for about $10. 5-10psi leaving the regulator is about where you want your output to be. 35-40ppm is, what I've found, to be about the best range for co2 in the tank. That's measured by a drop checker, kh/ph test, or ph regulator.
That is what I was trying to say. Thanks for translating by gibberish to some form of understandable communication.
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Old 08-01-2011, 12:37 AM   #10
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I have one. You need 30 (more like 40psi) for it to work. This means WORKING psi. DiY yeast can NOT make this pressure. You need to dial up your regulator's WORKING PRESSURE for this thing to work. Yes it works wonderfully too.

There are two gauges on your regulator. One is tank pressure which is normlly 1100psi and the other is working pressure which ranges 0-100 psi. Most diffusers work on only about 10 psi. You turn the nob in the middle to make it go up. Do this VERY slowly or you'll blow the gauge.

And the GLA diffuser is WAYYY over priced. You can get it elsewher for around 20 bucks online. I had a friend pick one up for me when she visited hong kong for only about 15 bucks.

And yes the GLA diffuser is just a repackaged UP aqua diffuser that you see on ebay. The shrimp lab also sells them for a lot less. Many of these "high class" plant stores are rip off stores. I'd steer well away from them... (unless you're getting a tank or something...I'd want assurance that there won't be 30 gallons of water on my floor)

The same EXACT thing (same manufacture etc.) at the shrimp lab:
http://theshrimplab.com/store/?cat=10

30psi is not a quantity of co2 but a force of it coming out of your needle/metering valve. Bubble count will ballpark your co2 levels.
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