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  • Results 1 to 19 of 19

    Thread: DIY koi/goldfish spawning net.

    1. #1
      Nguyen365's Avatar
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      DIY koi/goldfish spawning net.

      I recieved this 200 nylon mesh which makes out to be 70 micron. I was going to try and make a diy spawning net to hang inside my pond. My pond is only 1000 gallons so the spawning net will be maybe 1/3rd size of the pond.
      Luckily my wife has a sewing machine that i can use to sew this nylon cloth into a rectangular net.

      If my koi spawn I think the 70 micron mesh will keep the fry safe and no needing to set up an extra tank and filtration.
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      -Tony
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    2. #2
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      But are there old enough females koi?
      Aren’t your pond is full of studs :;
      M.Nguyen


    3. #3
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      Dont know I saw a few chasing after my yellow yamabuki. Fingers crossed they spawn. I'll try anyways. Lol. Or at least I can partition out my greedy karashigoi they are getting big bellies

      Heres the design.
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      If spawning in 1k gal pond You better get ready for a mayor ammonia spike that could last as long as 5 to 7 days because of all of the infertile eggs that will rot and for the first 48 hours the excess milt from all the males will be your worst nightmare just a heads up.Name:  20180406_114910.jpg
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      Last edited by Orlando; 04-20-2020 at 08:45 PM.

    5. #5
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      Thanks for the heads up orlando.. seachem safe and big water changes then?

      What was the temperature when your koi spawn orlando. Did you have an indoor setup?
      -Tony
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      Quote Originally Posted by Nguyen365 View Post
      Thanks for the heads up orlando.. seachem safe and big water changes then?

      What was the temperature when your koi spawn orlando. Did you have an indoor setup?
      Are you ready for 100% water changes daily for at least 2 to 3 days Just think what that would do to your koi and filters, my temperature is always the outside temp nothing happens indoors but usually 70 to 74* outside and I think I've already answered the outdoor question. Am trying to help here that's why I suggested a separate tank for your spawn if you loose the eggs no big deal but why jeopardise the entire system.

    7. #7
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      I dont even know if theres a female koi in my pond. I haven't seen any koi showing really big bellies. dont really want to invest in a separate tank atm for that reason. Let me take a photo of what I suspect a female. Lol
      -Tony
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    8. #8
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      The* belly seems big compared to the others. Any guesses?
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      Last edited by Nguyen365; 04-20-2020 at 10:22 PM.
      -Tony
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      Quote Originally Posted by Nguyen365 View Post
      The* belly seems big compared to the others. Any guesses?
      If I had to guess I'd say it's a shemale...

    10. #10
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      I saw a few others chasing this yamabuki so I have no idea?
      -Tony
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    11. #11
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      The yamabuki looks female to me, but koi body shape can be tricky on some of them. I've been wrong more than once.

      I'd lean more toward spawning in a separate tub from your main pond. If you put in a net, you might get every koi in the pond spawning and foul the water. Years ago, I let mine flock spawn. In the morning, every male would chase one female until she was empty, and then they would pick the next female. They would finally stop around noon and then repeat with two more females the next morning. After three days of that I had big mess and was fighting water quality problems for the next few weeks. No fish losses, but a lot of work, and stink.

    12. #12
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      Mine have spawned in water temperatures anywhere from lower 60's to upper 70's F, but 68-75 seems most common.

      Some have best luck when moon is full, but I've seen them spawn in all different moon phases.

    13. #13
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      Spawning in the main pond could be problematic indeed.

    14. #14
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      Get a 24” tall, 10’x6’ intex pool. It’ll be enough to spawn quick, clean it and fold it back up. That’s why I’ve got for my attempt at spawn here soon.

    15. #15
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      Quote Originally Posted by Nguyen365 View Post
      I recieved this 200 nylon mesh which makes out to be 70 micron. I was going to try and make a diy spawning net to hang inside my pond. ...
      And I see from post #1 that it is also a very nice match with the rest of your home décor.

    16. #16
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      Lol.. I haven't been working on this project unfortunately..
      -Tony
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      1st house paid off at age 36 bought 3/2016 4 years and 3 months

    17. #17
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      Last year I hacked something together that actually worked really well. Used 1/2" pvc pipe with lengths of nylon rope zip tied to it. I un-braided the rope, so it resulted in hundreds and hundreds of threads for eggs to attach to. Placed them in the bottom of the pond, surrounding perimeter of the drain. They worked really well, caught probably 70-80% of the eggs


    18. #18
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      Wow looks great. Is that a 75 gallon tank?
      -Tony
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      1st house paid off at age 36 bought 3/2016 4 years and 3 months

    19. #19
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      It's was actually ~150 gal, it was monstrous lol

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