Understanding the IM Fusion sump

Discussion in 'New to Saltwater & Reef Aquariums? Post Here' started by wannaheli, Sep 21, 2017.

  1. wannaheli

    wannaheli Member

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    I'm in the process of setting up an Innovative Marine Fusion 20 tank and am trying to learn as much as possible. The return chamber is the largest chamber and has an area that is under chamber 1 and 2. It would seem that the water in that area would be stagnant. What would be the purpose of an area for stagnant water? Should I put anything there? Rubble live rocks?
     

  2. wannaheli

    wannaheli Member

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    image.png Here is a picture from the manual.
     
  3. tupes

    tupes Valuable Member R2R Supporter Reef Squad R2R Excellence Award Build Thread Contributor Louisiana Reef Club

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    It's not stagnant water. It's circulating. I don't know why that area is there. I guess you could shove some rock in there if you wanted. I'm sure someone else will chime in.
     
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  4. Mengchhorn Chhun

    Mengchhorn Chhun Active Member

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    I don’t put anything in mine just leave it there.
     
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