More regular water changes or ro top ups

Discussion in 'General Discussions and Advice' started by moe101, 20 Jul 2013.

  1. moe101

    moe101

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    Would it be better :
    -building a tank with sliders on the top of tank and sump ,in order to reduce evaporation to a minimum and doing a water change of 20% every 2nd week.
    Or
    -building a rimless tank with top open ,where there will be much more evaporation and doing a 20% water change once every 2 months and ro top ups every single day ?

    Comments and advice welcomed
    (there must be a way to reduce cost of ro water used and the use of water itself in the running of a marine)
     
    Last edited: 20 Jul 2013
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  3. Haaibek

    Haaibek

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    tank with sliders in summer and lights you will need a chiller.
     
  4. viper357

    viper357 Admin MASA Contributor

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    In my opinion RO water top-ups and water changes are not and should not be related. Whether or not you do a water change once a week or once a year, you will always need to top-up with RO water, unless you run a completely sealed system.:)
     
  5. butcherman

    butcherman Moderator MASA Contributor

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    OR water is a means to control SG stability

    WC to improve the overall water quality of your tank.
     
  6. carlosdeandrade

    carlosdeandrade

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    true, but a subject that has been debated many a time in here.
     
  7. butcherman

    butcherman Moderator MASA Contributor

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    Is a general theory. but for this thread to differentiate between ro and wc lets stick to it
     
  8. shan

    shan

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    A tank is a living, ever changing organism and unfortunately you cannot state a water change regime in stone. There are so many factors that come into play with WC, a bad purchase from an LFS that put some stuff in your tank and you need a WC, dead fish, bubble tip get sucked into wave maker to make stew, ...

    It is also dependent on your equipment and media that you are using as some tanks have gone months, even years without a WC (there was a recent thread about one such monster tank)

    Now for RO top ups, that you need daily, again depending on tank size and loss

    The above is very simplified just to illustrate a point. Your decision on open top or sliders in my humble opinion should not be based on WC and top up regime
     
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