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  1. #1

    Large clay pond build, opinions please.

    I'm moving house soon and leaving behind my much loved koi pond with a view of trying somthing completely different. A large clay natural mud pond.
    https://youtube.com/shorts/UU3nSkR6L40?feature=shared
    https://youtu.be/qMy-Os-NmBM?si=QovGEpQ96y2P7vZr

    You guys on this forum all those years ago gave lots of ideas to help me with a very successful enjoyable koi pond over the last 10 odd years. So it seems only right to come back here for the next chapter in my fish keeping hobby.

    My new house has a nice sizable bit of land that is built on clay. My initial thoughts are to dig out a deep large clay pond , puddle the clay down with an impactor then line ontop of the clay ,smooth pebbles so my koi won't stur up the bottom.

    I'm looking at weed and an air stone to keep the water balance and know I'll need to mature the pond before I put the fish in.

    I will look to video document my adventures and hope you guys have some opinions and ideas I haven't thought of

    Many thanks Dan.


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  2. #2
    Senior Member Rank = Gosai KiOgon's Avatar
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    Going by the 30m scale on the photo, your green outline seems to be approx. 1/3 of that, so are you thinking a <10m long pond? That's not 'large' enough IMO
    Karasugoi Purachina Benigoi Showa Sanke BudoGoromo Yamabuki ShiroMuji ShiroUtsuri OchibaShigure

  3. #3
    It was very much a drawing on the back of a fag packet.
    My thoughts are to get to 2 meters deep I'll have a gradient 3 to 1
    So I had 12 to 15meters in mind bank to bank.
    What we're your thoughts on size?

  4. #4
    Senior Member Rank = Gosai KiOgon's Avatar
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    My thoughts on a mud pond are based on what I've seen in Japan, here's a beautiful example from Mike Snaden's videos. I appreciate you're not going for the 'real deal' but the bigger the better for sure and without filtration, thousands of litres per fish would be a start.
    https://www.youtube.com/watch?v=5J-zMUQvgMs

    There's surely plenty of info on you tube!
    Karasugoi Purachina Benigoi Showa Sanke BudoGoromo Yamabuki ShiroMuji ShiroUtsuri OchibaShigure

  5. #5
    Thanks for this. Yes I'll be creating as large a volume of water as possible. I have 10 very large koi that I want to put in there and to make it much larger then their current home.
    I'll do a test dig to start as I'm sure it's clay all the way through and if so I'll be happy to proceed with the dig. What I haven't seen on line is to line the compacted clay with pebbles. Pebbles being heavy enough for the fish not to move and to not alow the koi to sift through the mud. Plus pebbles being smooth as not to cut the fish.

  6. #6
    Senior Member Rank = Adult Champion Twhitenosugar's Avatar
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    Have you seen many videos of natural swimming pools.

    Many of them incorporate a large shallow area - next to the main deep swimming area - that is planted out and acts as a veg filter. Then using airlifts, water is pumped from the depths of the swimming area up and through the shallow area to filter the water out.

    Could you do something similar but as a koi pond?

    Although I think most natural swimming pools still have a plastic/rubber liner, so you would need to consider if it will work if you are muddle puddling.

    Sent from my Pixel 8 using Tapatalk
    13,000L fibreglassed raised pond with window

  7. #7
    Senior Member Rank = Gosai KiOgon's Avatar
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    You mention "3 in 1 gradient", if you mean sloping down from the edges to the centre - it will be Heron Heaven possibly other predators too in your area, you'll need to consider that!
    Karasugoi Purachina Benigoi Showa Sanke BudoGoromo Yamabuki ShiroMuji ShiroUtsuri OchibaShigure

  8. #8
    That's a good point, ahhhhh.
    I would rather a gradient of 1 to 1 for water volume.

  9. #9
    Quote Originally Posted by Twhitenosugar View Post
    Have you seen many videos of natural swimming pools.

    Many of them incorporate a large shallow area - next to the main deep swimming area - that is planted out and acts as a veg filter. Then using airlifts, water is pumped from the depths of the swimming area up and through the shallow area to filter the water out.

    Could you do something similar but as a koi pond?

    Although I think most natural swimming pools still have a plastic/rubber liner, so you would need to consider if it will work if you are muddle puddling.

    Sent from my Pixel 8 using Tapatalk
    I have seen these videos and they would make a good koi pond! I think I need steep banks as mentioned on the predator side of things. As for water balance I'll defo be looking at weed with an air disc

  10. #10
    interesting ideas here following

 

 

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