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Thread: koi pond shape

  1. #1

    koi pond shape

    Evening all, hope your all well.

    Random question but is the shape of a koi pond important or not as im constructing my second koi pond and want to do it right so its my last pond build ha ha

    Any advice will be gratefully appreciated but please make it constructive



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  3. #2
    Extreme Koi Member Rank = Jussai RJW2012's Avatar
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    I think people can get a little hung up on shape; it’s really a personal choice.

    Some may go for a formal raised (block built and de rigour with a window these days) others a more natural in ground route (rocks and planting, etc.)

    I prefer the former, although in my case it was a question of space having a small garden.

    That’s not to say you don’t see some beautiful natural ponds; look at Japanese gardens with flowing water over rock, bridges, stepped planting, etc. ‘What you have to play with’ played a large part in my decision, coupled with a slight slant on practicality.

    Rob.


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    Extreme Koi Member Rank = Grand Champion Andre Asagi's Avatar
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    Not a random question at all. A very good question. One that depends on other variables as well as the shape of the hole. Such as position of bottom drain/s, position/angle of pond return/s etc. And how you want the water to move. Eg Circular or River-like.

    There exists a web site with various diagrams and explanations but i cant remember which site. Don't think its Manky Sanke's site but it might be.

    That's not particularly helpful is it. Sorry.

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    Moderator Rank = Supreme Champion Feline's Avatar
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    It mostly aesthetics and personal choice. I was very tempted to do a kidney shaped pond, but dont think it would have worked with a window, plus would have been an awful lot harder to build.
    Most people who do a raised pond end up going with a geometric shape for practical reasons. If youre doing a ground level pond its much easier to go ith something curvy.

    There is a school of thought that rounded corners help flow, but even square and rectangular ponds can have good flow if they have enough bottom drains and returns in the right places.

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    Junior Member Rank = Tosai Spacekoi's Avatar
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    The question about pond shape is a very good question in my opinion.

    Like the others said, are there aesthetic und functional reasons.

    The best flow of water and dirt, will happen in a round pond, with tangential return of the water and bottom drain in the middle.
    But a round pond is nothig for the eye.

    Rectangular ponds are more easy to build and you can realise a pond cover in minutes.
    Like Feline said i think also that there is no problem with the flow.
    Don´t forget the koi that are swirling around the dirt, that will be transported to the drains.

    Another aspect in my opinion is the size of the koi.
    Koi with +80 cm need room for movement.
    Therefore it looks more aesthetic when the pond has an organic form.
    The Problem there is the water flow.
    Maybe you need extra flow pumps.

    You see, there are many options and the choice is yours.

    Build the pond around a volume of 20.000-30.000 liter with a deep zone of minimum 1,7m and a small shallow zone around 0,7m.
    Thats the only thing i would recommend.

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    Senior Member Rank = Supreme Champion freddyboy's Avatar
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    most have covered what i was going to say above.the depth comes into it as well. i have 7 feet of depth of pond but six feet of water. in my opinion its to deep. 4. 5 is ideal for a pond.
    murder to catch the fish when netting. i have to drop the water down to catch all of mine. agree with water flow. but make sure you get your Tangible returns in the correct place.

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    Extreme Koi Member Rank = Grand Champion lee63's Avatar
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    koi pond shape

    Completely depends on how much skill you want to employ in building it, what area you have to play with and what best suites your eye koi pond shape i will be honest here and say that i prefer to see curves and something a bit different, kidney shaped been one. But on the other hand i also prefer and have to have a raised pond due to my ground and water table. Put them two together and the build takes on a new level of skill to achieve hence mine is a half in half out raised rectangle koi pond shape i do like it but it could be enormously improved so its not the forever pond koi pond shape
    Theres quite a few factors really to consider and its important to get it right seen as you plan it to be the forever pond koi pond shape
    For me at least 2000 gal uk for koi but 1000 gal minimum in my book. At a minimum 4 ft deep but (and this is personally) i wouldnt go much over 5ft. Overall Surface area is a key in the long chain of locks if you want good healthy developed fish in the long run. A pond that is 6x6 and 8ft deep has a good volume but typical surface area on a horizontal plane there is 6ft square. A pond at 10ft x 6ft but only 5ft depth is similar volume but alot more horizontal area koi pond shape thats why i always advise not to get too hung up on overall volume, if you dont have the space then dont go stupidly deep to try and make up for it.
    You have to factor in adaquate filtration too and where this will be housed? So this can have its own critical factors such as ease of drainage and supply’s to it ie electric, water etc.. once the whole picture (thinking outside the box) is put together this can have a big input on shape and placement of any pond koi pond shape appologies for maybe going on a bit there ha ha ultimatly its up to you but what i will say is when you look at ponds (have a whip through members ponds and build diaries on here) ask yourself what shapes and features draw you in personally to certain ones? That may give you a clue to your own preference koi pond shape
    I know im in a minority here saying this but i dont really like windows in a pond unless its something very different like a curved edge one etc.. its all ones own preference and opinion. Best of luck mate.


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    Its always a work in progress

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  15. #8
    Thanks everyone for there replies and advice, its greatly appreciated.

    I tried asking numerous koi/pond stores locally there advice but most just slagged each other off etc.

    Basically ive got just over 11x10 ft and however deep me and my shovel take me to play with, i personally like circular ponds appearance wise but understand you can get more area with rectangular ponds etc even though "dead spots" exist.

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