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Thread: What is the difference between Flex Tube and Silicone Tube?

  1. #1
    Join Date
    30.01.2010
    Location
    Athens
    Posts
    295

    Default What is the difference between Flex Tube and Silicone Tube?

    Hi, as the title says, can someone inform me what is the difference between the 2 tubes (Flex Vs Silicon)?

    Which is for what use?

    I will buy a 2.2 Maxi SA that I am going to use for ATW when home but to feed liquid food while on vacation (new set up while on holidays).

    Which tube should I buy?

    Worlds most gadget Aquarium.. almost.

  2. #2
    Join Date
    27.05.2015
    Posts
    2,485

    Default

    It comes down to what you'll be dosing or pushing through the tubes. For example, the KHD water sample, waste water and vent use silicone tubes for normal saltwater. However, for the KHD reagent, flex-PVC tubing is used for minimizing oxygen exchange from the outside of the tube which tend to cause air bubbles for this kind of solution.

    Silicone has more flexibility to it whereas Flex-PVC tubing is more "stiff". If you're going around tight corners, the silicone tube may be better for your 2.2 Maxi.
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  3. #3
    Join Date
    30.01.2010
    Location
    Athens
    Posts
    295

    Default

    Perfect explanation, thank you so much!

    Worlds most gadget Aquarium.. almost.

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