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  1. #1
    Junior Member Rank = Fry LOD's Avatar
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    Question my koi only eat & show up at night

    Hi all,

    I inherited an old pond when moving in last year and started with kois. Long story short after heron visit and horrendous water, we did a full pond refill last month.
    Pond is about 500 gallons and water quality is good:
    PH: 8
    KH: between 7 and 8
    GH: 4 (water is soft here)
    No nitrate/nitrite/ammonia

    We already had 3 ghost koi which somehow survived all of this but they are very skittish and stay hidden during the day. I started to put food in a feeding disk as I realised that they need food (duh!) - before I would find the pond water all stirred up every morning (they were grazing the bottom trying to find food - duh!).

    Hoping to help their skittishness I introduced 3 goldfish last weekend. They are not timid and used to people.
    After exploring they also have gone under and I can spot them only at night with a torch light. As they are new I hope that it is a matter of time for them to come back up and get confident but I fear that the koi's behaviour may have forced them to skittishness :-(

    I can spot 1 of the ghost at night so I know one of the 3 is a bit more confident.

    I spend a lot of time by the pond hoping they get used to me and have added some caves and there is plenty of plants cover.
    I feed them staple floating pellets with mealworms.

    Are they any tips on helping them becoming more confident? Is it a matter of time, weeks, months? Will it improve in the warmer months?

    Thanks a lot for reading.



  2. #2
    Senior Member Rank = Adult Champion g mac's Avatar
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    Is yours a shallow pond? I remember trying to grow some koi on in a shallow tank and they were extremely skittish and constantly stressed.
    7500 litres
    Filtreau combi with uv.
    Some koi

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  4. #3
    Senior Member Rank = Gosai Martin59's Avatar
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    How long has it been since you had a heron visit, and are you sure it’s still not coming back, they are very persistent and don’t give up easily.
    It will make the fish very skittish and will hide during daylight hours. Even if the heron has given up, it will take a long time for the fish to become confident enough to show themselves

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  6. #4
    Junior Member Rank = Fry LOD's Avatar
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    The pond is about 1 meter deep, it was built around 4 brick walls with a raised side on each side.

  7. #5
    Junior Member Rank = Fry LOD's Avatar
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    The heron was last seen in March but that does not exclude it came back since then however we added raised net so the entire pond is now protected for the last 4 weeks already.

  8. #6
    Iíd add my two cents:

    1) sounds like pond bottom has got fair bit of dirt if ghosts can stir up? If so do consider getting a pond vac as otherwise itís a paradise for bacteria and parasites

    2) my experience is ghosts are never friendly in first place heron or not. I suggest you consider getting a Chagoi or mukashi who are very friendly. They will outgrow your pond size in a couple years though - so be prepared to move on the ghosts or goldfish by then or just dig a bigger pond

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  10. #7
    Also Iíd suggest getting a better quality test kit - API pond master is what I use. Nitrate should not test zero something is not right

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  12. #8
    Junior Member Rank = Fry LOD's Avatar
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    Quote Originally Posted by NamoAmituofo View Post
    Also I’d suggest getting a better quality test kit - API pond master is what I use. Nitrate should not test zero something is not right
    I use the liquid tests from NT Labs but will check your recommendation, thanks

  13. #9
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    Quote Originally Posted by NamoAmituofo View Post
    I’d add my two cents:

    1) sounds like pond bottom has got fair bit of dirt if ghosts can stir up? If so do consider getting a pond vac as otherwise it’s a paradise for bacteria and parasites

    2) my experience is ghosts are never friendly in first place heron or not. I suggest you consider getting a Chagoi or mukashi who are very friendly. They will outgrow your pond size in a couple years though - so be prepared to move on the ghosts or goldfish by then or just dig a bigger pond
    1. thanks for the suggestion, yes it is already getting messy so I will definitely check that > any one in particular for a small pond?

    2. I am seeing more movements from the goldfish and 1 of the ghosts so I am going to wait hopefully the goldfish can bring them back up, I like the idea of adding another koi but extending the pond is not really feasible - let's see though...

  14. #10
    Junior Member Rank = Fry LOD's Avatar
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    Quote Originally Posted by NamoAmituofo View Post
    Also I’d suggest getting a better quality test kit - API pond master is what I use. Nitrate should not test zero something is not right
    I had a box of API pond master so just re-did the tests and results are the same 0 for nitrite and ammonia and ph between 7.5 & 8

 

 

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