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Co2: Can I do this?

Discussion in 'CO2 Enrichment' started by Gord Emsdale, Jan 6, 2008.

  1. Gord Emsdale

    Gord Emsdale Junior Poster

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    Hi

    I have 112g tank & want to put Co2 in with one of these Sedra Needle Wheel pumps located here: (plan to use the 2500)

    Sedra NW Water Pumps - AquaCave

    Can someone recomend one of these or another pump to use?
    I don't really want to put another device,(Co2 Reactor), in the tank, so I figured I could use the Sedra, OR can I even do it this way?

    Thanks..
    ..Gord
     
  2. raun

    raun Junior Poster

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    What's your current setup? Canister filter? Sump? Do you have power heads in the tank currently? The more info you can give about what you have to work with the better suggestions we can give you.

    My first thought is that you'll waste CO2 with the bubbles not completly desolving, and its fairly expensive. I have an inline reactor based off of Tom's venturi reactor design posted in the CO2 section (less than $20 in materails to make). This way I still have a great reactor without adding anything extra to my tank.
     
  3. Tom Barr

    Tom Barr Founder
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    Yes, these can work like mazzei venturi valve, maybe a bit better.

    Regards,
    Tom Barr
     
  4. Gord Emsdale

    Gord Emsdale Junior Poster

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    Hi Raun,

    I have 2 canister filters, 2080, 2028, 1 fluidized bed filter driven by an Eheim 1250, no powerheads. I currently have the Co2 running into an AM 500 reactor driven by a Pentair very noisyone 1200, I don't like this pump & don't want more stuff in the tank.

    Thanks Tom, I'll order one later today.
     
  5. Tom Barr

    Tom Barr Founder
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    Well, it'll be about 100X if not more intense and efficient than the AM thingy.
    So be careful.

    Regards,
    Tom Barr
     
  6. rusticitas

    rusticitas Lifetime Charter Member
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    I am having trouble figuring out how this works. Does one just use this pump to circulate water, but takes the gas-out tube from the CO2 canister and connect it to the venturi intake of this pump? And because it's a closed loop, and I assume fairly airtight, the CO2 gets dissolved "better" and circulated into the tank more efficiently?

    How does a "needle wheel" differ from other impellers? (I can see the visual difference, but how does it affect water flow in reality?)

    Also, is this an external pump?
     
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