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post #1 of 12 (permalink) Old 02-01-2012, 03:46 PM Thread Starter
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Better diffuser?

I am new to DIY CO2, running a single 2L with this diffuser.

http://www.amazon.com/Fluval-Ceramic...8114675&sr=8-1


Do you think I'd see an upgrade by switching to this diffuser?

http://greenleafaquariums.com/co2-di...ffuser-50.html


I just ordered a drop checker, so I'm not even entirely sure what my CO2 levels are looking like right now, but based off my pH and kH, I'm thinking I'm in the 10-14ppm range. So not great... but better than nothing. I've also debated just getting it and rigging up another bottle to it on the other side of the tank. Thoughts?

EDIT: I have a 29gal tank, I'd rather not build a bulky reactor, despite its advantages... so I'm looking to just get improved performance out of diffusers with a relatively small footprint. Also I have an HOB filter, so any sort of inline diffuser is not an option.
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post #2 of 12 (permalink) Old 02-01-2012, 06:40 PM
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The one from Green leaf aquariums requires a minimum pressure of 30 PSI so, yeast CO2 will not work with that. Using another bottle is a good idea. Put a fresh batch in it halfway through the life of the first bottle then, replenish the first bottle through half the life of the second bottle and repeat. You might get a more consistant CO2 supply that way. you can put a check valve right after each bottle then run them both to a T connector, then to your diffuser. That way you can remove 1 bottle without losing the CO2 pressure in the line to the other bottle.
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post #3 of 12 (permalink) Old 02-01-2012, 06:43 PM
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Quote:
Originally Posted by hbosman View Post
The one from Green leaf aquariums requires a minimum pressure of 30 PSI so, yeast CO2 will not work with that. Using another bottle is a good idea. Put a fresh batch in it halfway through the life of the first bottle then, replenish the first bottle through half the life of the second bottle and repeat. You might get a more consistant CO2 supply that way. you can put a check valve right after each bottle then run them both to a T connector, then to your diffuser. That way you can remove 1 bottle without losing the CO2 pressure in the line to the other bottle.

DIY CO2 can produce way more than 30PSI. I'm using a ceramic diffuser with my DIY yeast CO2.
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post #4 of 12 (permalink) Old 02-01-2012, 06:46 PM
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I use this kind with my 2L bottle DIY CO2. It works great. Fill the inside half way with water before attaching the airline for the bubble counter to work. Maybe that's obvious, but I didn't know at first. lol
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post #5 of 12 (permalink) Old 02-01-2012, 08:55 PM Thread Starter
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I am also currently using a ceramic diffuser. It takes a while for the pressure to build up enough, and the juice bottle looks like it's ready to pop.

Would that atomic diffuser require more or less pressure than the ceramic? Or the same? It noted in the description 30psi (low pressure)... the 30 doesn't really mean anything to me, but the fact that it says low pressure indicates that a DIY system would be able to handle it, right?
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post #6 of 12 (permalink) Old 02-01-2012, 08:56 PM
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Buff, maybe you should try a soda bottle instead. They are usually thicker and stronger than juice bottles. Mine doesn't puff up at all.
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post #7 of 12 (permalink) Old 02-01-2012, 09:52 PM
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Quote:
Originally Posted by Rich Conley View Post
DIY CO2 can produce way more than 30PSI. I'm using a ceramic diffuser with my DIY yeast CO2.
Using DIY co2 with this particular diffuser is a great way to end up with a stinky, sugary mixture of yeast and water all over you room.

This isn't the same as your average ceramic diffuser and requires much more pressure. Some pressurized setups don't have adequate output pressure to run them....
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post #8 of 12 (permalink) Old 02-02-2012, 01:39 AM
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u guys doing DIY with a ceramic diffuser is asking for it...

im going +1 with overstock and hbosmans warning to you guys....
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post #9 of 12 (permalink) Old 02-02-2012, 04:10 AM
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I have to run mine co2 at like 50psi for the ceramic diffusers to work


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post #10 of 12 (permalink) Old 02-02-2012, 01:10 PM Thread Starter
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Hrm... well, it hasn't exploded yet. I guess I'm still unclear as to which of the two links in the OP would require the most pressure.

Outside of those two risky options, what would you recommend I use to with my DIY Co2 on my 29gal?
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post #11 of 12 (permalink) Old 02-02-2012, 03:22 PM
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the 1st link would not require a very high cracking pressure and can be run on DIY. you could also use any of the various knock off diffusers on [Ebay Link Removed]


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post #12 of 12 (permalink) Old 02-02-2012, 04:49 PM
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i used the up-aqua nano diffuser with my 2 2L diy co2 bottles. works fine for me & i did check with vendor seller that it's suitable for it. I don't know about other regular size diffusers though..
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