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View Poll Results: When I reference % water changes I am referring to:

Voters
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  • My whole system's volume, with the sump included.

    12 60.00%
  • My display tank's volume only.

    8 40.00%
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Thread: Simple Math Question

  1. #16
    Registered Member bluelagoon's Avatar
    Join Date
    Aug 2006
    Location
    Halifax,Canada
    Posts
    2,498
    Real Name
    Mervin

    Default Re: Simple Math Question

    Here is a calculator with the sump calculation included for those with sumps. http://reef.diesyst.com/volcalc/volcalc.html

  2. #17
    Homesteader Filip's Avatar
    Join Date
    Sep 2015
    Location
    Macedonia-Europe
    Posts
    3,639
    Real Name
    Filip

    Default Re: Simple Math Question

    Whole system volume of course.

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