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  1. #1
    Senior Member Rank = Yonsai Naoki Atsumi's Avatar
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    Heating your koi pond in the summer?

    This is obvious to anyone who has keeping KOI in both Japan and the UK, and I am sure you will agree with me, but when I was in the UK it was very difficult for people to understand.

    Recently I did some research again and found that people are still very keen to keep the pond warm in the winter months, but I couldn't find anyone who was willing to keep the water warm enough in the summer to encourage growth.

    Koi Carp: Heating your koi pond in the summer?
    I found this person by chance. He doesn't have any experience of keeping KOI in Japan, so he is speaking from his imagination, but I think his insights are excellent and he is right.

    Is this kind of opinion still in the minority and that it will be difficult to spread??



  2. #2
    Senior Member Rank = Adult Champion davethefish1's Avatar
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    I think this is the major difference in koi keeping between east and west...
    Maximising growth is all well and good,
    Most people i think are happy to see thier koi grow quickly when young.
    But most koi keepers in this country don't keep koi to enter into shows.
    But as a personal hobby and as pets.
    Anď have modest ponds of 1000 to 4000 gallon.

    If thier 10 to 30 odd koi made close to a meter in a short time,
    They would quickly run out of space and have to move them on...

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  4. #3
    Senior Member Rank = Hassai Spongebob's Avatar
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    Naoki, I think you might be surprised.... There are many that now heat their ponds in the UK, and with an ASHP its not expensive to heat above ambient in the summer months, and effectively what an ASHP is designed for.

    The article you link to is15 years out of date btw !!
    Last edited by Spongebob; 17-06-2021 at 06:17 AM.
    9000 ltr, FG, BD, Nexus 220, Draco drop in, Remora i9 ASHP, Econbead 50, Roto Innovations shower

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  6. #4
    Senior Member Rank = Yonsai Naoki Atsumi's Avatar
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    Quote Originally Posted by davethefish1 View Post
    I think this is the major difference in koi keeping between east and west...
    Maximising growth is all well and good,
    Most people i think are happy to see thier koi grow quickly when young.
    But most koi keepers in this country don't keep koi to enter into shows.
    But as a personal hobby and as pets.
    Anď have modest ponds of 1000 to 4000 gallon.

    If thier 10 to 30 odd koi made close to a meter in a short time,
    They would quickly run out of space and have to move them on...
    I don't want to get into your hobbies, but as I said in the previous EKF Grow & Show thread, I thought I'd mention it because I know you're all keen and interested in growing your own little TOSAIs these days!

    It is not a difference between the East and the West, and I personally think that this is the greatest interest and pleasure of the average hobbyist.

    Quote Originally Posted by Spongebob View Post
    Naoki, I think you might be surprised.... There are many that now heat their ponds in the UK, and with an ASHP its not expensive to heat above ambient in the summer months, and effectively what an ASHP is designed for.
    Yes, that's right. That's what I'm focusing on. When I was in the UK and we tried it, we had to stop because of the cost, because we were using LPG gas.

    The benefits are definitely greater in the summer than in the winter. I would like to talk to you about this.
    Last edited by Naoki Atsumi; 17-06-2021 at 07:58 PM.

  7. #5
    Senior Member Rank = Adult Champion davethefish1's Avatar
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    Quote Originally Posted by Naoki Atsumi View Post
    I don't want to get into your hobbies, but as I said in the previous EKF Grow & Show thread, I thought I'd mention it because I know you're all keen and interested in growing your own little TOSAIs these days!
    It is not a difference between the East and the West, and I personally think that this is the greatest interest and pleasure of the average hobbyist.
    i'd not argue about growing on tosai, it's a popular thing over here.
    but lots do so in grow on tanks, so you can easily heat a smaller body of water all year round for low cost,
    and control the higher feeding better.

    me i'm just intersted in having a pond of nice healthy koi to enjoy, not so keen on the growing on thing atm.
    but maybe that will change in time...?

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  9. #6
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Quote Originally Posted by davethefish1 View Post
    i'd not argue about growing on tosai, it's a popular thing over here.
    but lots do so in grow on tanks, so you can easily heat a smaller body of water all year round for low cost,
    and control the higher feeding better.

    me i'm just intersted in having a pond of nice healthy koi to enjoy, not so keen on the growing on thing atm.
    but maybe that will change in time...?
    The grow on games Is fun mate the changes are mint

    Sent from my SM-N9005 using Tapatalk
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    "we are water keepers first"

    Johnathan

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    Senior Member Rank = Adult Champion samp09's Avatar
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    I love the growth side of things, and although I don't have a grow on, I am enjoying watching the growth in the pond! I have high hopes for my Tosai this year

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    Moderator Rank = Supreme Champion Feline's Avatar
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    I know plenty of people who heat their ponds in summer. I heat my pond in summer- it’s at 24.5C currently and has been for over a month. I have solar panels and an ASHP so it costs almost nothing to do it.

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  15. #9
    Senior Member Rank = Adult Champion samp09's Avatar
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    Quote Originally Posted by Feline View Post
    I know plenty of people who heat their ponds in summer. I heat my pond in summer- it’s at 24.5C currently and has been for over a month. I have solar panels and an ASHP so it costs almost nothing to do it.
    How have your new fish settled in? My two Byer Kohaku have noticeably grown already since April. I am also keeping it heated through summer although over 20 is my main target.

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  17. #10
    Senior Member Rank = Yonsai Naoki Atsumi's Avatar
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    Quote Originally Posted by Feline View Post
    I know plenty of people who heat their ponds in summer. I heat my pond in summer- it’s at 24.5C currently and has been for over a month. I have solar panels and an ASHP so it costs almost nothing to do it.
    That's great! If seasonal feeding techniques like ours spread to everyone in the UK there will be ever happen to be grand champions, but once every few years, a small KOI bought at a low price by an unknown enthusiastic hobbyist grew up will get an adult champion or a mature champion and beat a KOI bought expensive by a rich man exciting things may happen!

  18. #11
    Senior Member Rank = Yonsai Naoki Atsumi's Avatar
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    Quote Originally Posted by samp09 View Post
    How have your new fish settled in? My two Byer Kohaku have noticeably grown already since April. I am also keeping it heated through summer although over 20 is my main target.
    At 20° C it is possible to feed in a very normal way, moving on to 22° C and 24° C to achieve the extreme maximum feeding methods practised by the more advanced hobbyists in Japan. This is the preliminary stage, practised in the winter, but it only takes a few months for the little TOSAI to grow up to this level.

    https://youtu.be/_ZTY4WNukFw
    https://youtu.be/1SBl7V28TXI

    They seem to achieve these results by setting the temperature at 24~5 degrees Celsius for each of them and by feeding at a ridiculous frequency rather than quantity.

  19. #12
    Senior Member Rank = Hassai Spongebob's Avatar
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    Quote Originally Posted by Naoki Atsumi View Post
    At 20° C it is possible to feed in a very normal way, moving on to 22° C and 24° C to achieve the extreme maximum feeding methods practised by the more advanced hobbyists in Japan. This is the preliminary stage, practised in the winter, but it only takes a few months for the little TOSAI to grow up to this level.

    https://youtu.be/_ZTY4WNukFw
    https://youtu.be/1SBl7V28TXI

    They seem to achieve these results by setting the temperature at 24~5 degrees Celsius for each of them and by feeding at a ridiculous frequency rather than quantity.
    For completeness some of the more advanced hobbyists in the UK also do this
    9000 ltr, FG, BD, Nexus 220, Draco drop in, Remora i9 ASHP, Econbead 50, Roto Innovations shower

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  21. #13
    Senior Member Rank = Adult Champion samp09's Avatar
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    Quote Originally Posted by Spongebob View Post
    For completeness some of the more advanced hobbyists in the UK also do this
    24 is where I want to keep as a minimum although trying to keep costs down, we have a slightly colder week this week and I need to treat with PP so letting the temp drop slightly for this, once my nitrates drop anyway!

  22. #14
    Senior Member Rank = Yonsai Naoki Atsumi's Avatar
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    I think it is a bad habit to have sales and events in August in the UK. I think it should be changed gradually, if not immediately.

    Incidentally, in our part of the world, most sales are over by late May and from then until October, breeders, dealers and hobbyists alike concentrate on the feeding period. The more experienced they are, the less they like to be netted. These summer scenes and customs of ours were rarely covered or experienced by your KOI pioneers until now.

    I think this is the root of the great cultural and customary differences that exist to this day.
    Last edited by Naoki Atsumi; 01-08-2021 at 06:13 AM.

 

 

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