New Build

Discussion in 'Beginner Discussions' started by Sheldon Fry, 4 Apr 2013.

  1. Sheldon Fry

    Sheldon Fry

    Posts: 68
    16 May 2012
    Likes Received:
    Bloemfontein, Free State


    Im Planning a new tank and need help with the overflow

    The tank size is 850x850x650 high

    Im planning a skinny overlow but not sure how far the overflow must be from the side of the tank

    Your advise will be greatly appreciated
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  3. RiaanP

    RiaanP Moderator

    Posts: 22,995
    11 Aug 2008
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    The overflow should be as wide as possible. The narrower the overflow means that you got more water head height in your tank. More water that drains to sump when power goes out.

    Plus the higher the actual water level is above the overflow rim, the easier it is for snails and smaller fish to end up in the overflow.

    Using overflow teeth will also increase water head height, and then your water could touch your bracing. Been there, done that, had to cut overflow box out and cut it shorter by 15mm.
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