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Thread: How to Set Up a Pressurised CO2 System

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    How to Set Up a Pressurised CO2 System

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    We have came up with a simple visual guide on how to set up a pressurized CO2 system. We hope that this guide will be beneficial for beginners and aid you in setting up a pressurised CO2 system.

    We will be using the ANS - CO2 Cylinder (3L) for the setting up and adding goodies to it along the way.

    Before fixing anything up, make sure that the CO2 cylinder's main valve is turned off. Also, examine the cylinder to make sure that there are no dents and that it is able to stand upright.



    Notice the large hole on the cylinder head (where the arrow is pointing). That is where the CO2 regulator will be connected to. Use a spanner to tighten the connection if you have to.

    And we are done with fixing the CO2 regulator to the cylinder.


    Next, we are going to fix up the regulator to the rest of our CO2 goodies.

    We need a fair amount of good CO2 tubing (two lengths) and a diffuser as well.

    First, we utilize the shorter length of the CO2 tubing. This part will most likely be kept out of view (in the cabinet) when the setup is complete.Unscrew the part as shown on the regulator and insert your CO2 tubing through it.

    Fit the CO2 tubing onto the regulator and screw the part back. Make sure that the CO2 tubing is fitted tightly (just give it a gentle tug).
    At the other end, attach a CO2 check valve to it. It is important to use check valves to prevent backflows.

    Note: The arrow on the check valve should point away from the regulator and towards the diffuser.
    On the other end of the check valve, attach the rest of the CO2 tubing to it. Finally, fix up the diffuser. Do it slowly and gently to avoid broken glass!If you are having difficulties attaching the diffuser, do not force it. Heat the CO2 tubing gently with a lighter, and then try attaching it to the diffuser again. It should be a breeze!

    After everything is moved in place, turn the main valve of your CO2 cylinder fully. Your regulator guage should show a reading (indicates how much gas is inside). To check if there is a possible leak, leave your setup overnight and read the regulator guage again in the morning. It should show the same reading if there is no leakage.
    Mizu World - Understanding your Aquatic Needs
    Web: http://www.mizuworld.com Email: [email protected] Contact: +6597857957 (Ben)

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    Re: How to Set Up a Pressurised CO2 System

    To read the article in its intended layout on our website, please click here.
    Mizu World - Understanding your Aquatic Needs
    Web: http://www.mizuworld.com Email: [email protected] Contact: +6597857957 (Ben)

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    Re: How to Set Up a Pressurised CO2 System

    Could you elaborate more on the CO2 tubing? How is it different from normal air tubing and the black rigid CO2 tubing?

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    Re: How to Set Up a Pressurised CO2 System

    Quote Originally Posted by |squee| View Post
    Could you elaborate more on the CO2 tubing? How is it different from normal air tubing and the black rigid CO2 tubing?
    The CO2 tubing which we carry is made of Polyurethane. It is tear and abrasion resistance. It also offers good chemical resistance, tmaking it suitable for use with CO2. Also, it handles pressure and vacuum applications better than corresponding sizes of PVC or rubber.

    It is naturally flexible and does not harden and crack over long periods of use.
    Mizu World - Understanding your Aquatic Needs
    Web: http://www.mizuworld.com Email: [email protected] Contact: +6597857957 (Ben)

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    Re: How to Set Up a Pressurised CO2 System

    Quote Originally Posted by kimchi View Post
    How many bubble per second for a 4x2x2 feet planted tank?
    How heavily planted is your aquarium?

    It is not the amount of bubbles per second that is important. Rather, it is more important how you are injecting the CO2 into your aquarium (ie. diffuser, reactor, etc) and what the circulation in your aquarium is like.

    A general rule is to aim for 30-50ppm.
    Mizu World - Understanding your Aquatic Needs
    Web: http://www.mizuworld.com Email: [email protected] Contact: +6597857957 (Ben)

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