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Thread: Grow on pond

  1. #1

    Grow on pond

    Hi all, looking for advice on best filtration set up for an EZ500i pond. I bought all this 2nd hand (apart from The Surge, which I've not used before) . So, I have a Queni Koi 25 combi drum/filter, Elecro 3kw in line heater(may change that for ASHP) ,and an EA 10000 vario. What size air pump will I need? I want an air curtain and/or air ring in pond. Im not looking for big fish or huge numbers of stock. TIA



  2. #2
    Senior Member Rank = Adult Champion Alburglar's Avatar
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    That's an awesome setup for a grow on pond with a 40 litre air pump, but you'll need a bigger pond for Koi, in the long term. For now. Stick Six tosai in and enjoy, but in two years you'll need double that volume, and three years, probably triple. So you'll need to be planning/building the big pond almost straight away.
    2660 Gallons. 4" Bottom Drain and Skimmer. Draco Solum 16 Drum. Anoxic Filtration. Air lift returns.

  3. #3
    Hi , thank-you for the comments. Yes it is a lot of filtration but the deal was to good to turn down. Having had a 3k gallon pond previously I wanted something smaller(also we downsized house and garden). I will only get small number of high quality Tosai, the intention is to grow them to go in my daughters 3k gallon pond which will soon be built. Where would you suggest running a trickle feed into...drum or pond? We hope to power everything with solar tiles on our shed and pergola roof, an ASHP heater to stabilise temperature rather than heat excessively. The package came with an Elecro 3kw heater which I will sell and I also bought a Surge the day before I bought this set up (that will be sold as well.

  4. #4
    Senior Member Rank = Adult Champion Alburglar's Avatar
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    If you set the drum waste to match your ideal pond water level height, then you can trickle in to the pond and it will overflow into the drum waste.
    Don't trickle in to the drum, in that scenario or it will be straight in, straight out.

    ....that works on a draco, not sure how practical on other models, but theory should be the same
    Last edited by Alburglar; 04-10-2024 at 10:57 AM.
    2660 Gallons. 4" Bottom Drain and Skimmer. Draco Solum 16 Drum. Anoxic Filtration. Air lift returns.

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