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  1. #41
    Senior Member Rank = Grand Champion RS2OOO's Avatar
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    Hi markini,

    Those parameters, if stable, will not cause the problems you've been seeing.

    You need to be sure of the pH stability to discount that as a cause.

    You said on another thread your Koi are spitting food, has that continued since eradication of the costia?



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  3. #42
    Quote Originally Posted by RS2OOO View Post
    Exactly the same with my lot.

    Then the same stains came back after the Alparex, inside the lower lip being the most prominent staining.
    not sure what to do now, reading on filtration/chemicals/water changes/reduce feeding

    need to reduce these levels not have anywhere for a second pond /veg pond from reading this
    Anoxic Filtration

    or filtration that removes ammonia before it can convert to nitrite then nitrate

  4. #43
    Quote Originally Posted by RS2OOO View Post
    Hi markini,

    Those parameters, if stable, will not cause the problems you've been seeing.

    You need to be sure of the pH stability to discount that as a cause.

    You said on another thread your Koi are spitting food, has that continued since eradication of the costia?



    Sent from my Pixel 2 using Tapatalk
    Ok Nitrate seems grey area when searching some websites say not harmful in any amount and others say it can kill..
    made me panic.

    my large chagoi spat her food out yesterday evening she sometimes eats and other times wont eat . so no really change in eating behaviour.
    its a real mixed picture, a few seem totally unaffected , others rub but still act fine, but my largest fish are the ones mostly effected apart from one where he doesnt really rub and eats fine. the others just sit at the bottom still and rarely eat . and when they do they go back to the bottom again .
    and my deformed fish is now again losing his balance
    salt level now raised to 1/2 ounce . awaiting to see how this helps if at all.

  5. #44

  6. #45
    just read cant use it with salt in the pond ...

  7. #46
    Senior Member Rank = Grand Champion RS2OOO's Avatar
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    The lower the nitrate is obviously better. With high nitrate it to me implies the water will contain other waste and likely have a high TDS.

    However, I've run nitrate levels to 80mg/l on goldfish tanks and haven't noticed any direct impact to health, but they do start getting more lethargic after a while and growth slows down.

    40mg/l is probably about the level where I'd feel a water change is overdue, but not a problem for your koi in the short term.

    Anoxic filtration definitely helps keep it down, meaning you can get away with less water changes if on a meter.

    As for your koi, the symptoms you describe are very similar to what my koi have been going through and it's difficult for me not to simply assume the cause is the same for yours as it is for mine.

    If water parameters and fluctuating pH definitely isn't the problem and your scrapes are all clean then I would be suspecting bacterial infections and possibly gill flukes that are hiding in the gills.

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  9. #47
    Fish perked up again this evening only the deformed fish rubbing, all are up for a feed. and happy swimming together nice to enjoy it for once.
    awaiting salt meter to arrive ive just loading the pond up with salt ive put in 45kg so far over 2 days .

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  11. #48
    Quote Originally Posted by RS2OOO View Post
    The lower the nitrate is obviously better. With high nitrate it to me implies the water will contain other waste and likely have a high TDS.

    However, I've run nitrate levels to 80mg/l on goldfish tanks and haven't noticed any direct impact to health, but they do start getting more lethargic after a while and growth slows down.

    40mg/l is probably about the level where I'd feel a water change is overdue, but not a problem for your koi in the short term.

    Anoxic filtration definitely helps keep it down, meaning you can get away with less water changes if on a meter.

    As for your koi, the symptoms you describe are very similar to what my koi have been going through and it's difficult for me not to simply assume the cause is the same for yours as it is for mine.

    If water parameters and fluctuating pH definitely isn't the problem and your scrapes are all clean then I would be suspecting bacterial infections and possibly gill flukes that are hiding in the gills.

    Sent from my Pixel 2 using Tapatalk
    do i need a TDS meter ? thing is though , i have my drum filter 50 micron screen, no debris on the pond floor pond floor is still black , walls are black/brown window sometimes gets a little green algae as thats the only part of the pond that gets a bit of sun.
    dont need a UV.
    wish i now had a polycarbonate roof , wonder what impact of never getting sun on the fish would cause . might change the roof if that is worth doing ,
    need to focus on water quality hopefully baking soda will arrive by thursday then take a nearly a to raise PH to 8
    100grams per 1000gallons per day i read on another post
    i here bakki rivers are good at reducing Nitrate levels how true that isi dont know guess, making one and adding siporax will find out.

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  13. #49
    Senior Member Rank = Supreme Champion freddyboy's Avatar
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    I have just added a bakki shower on my pond. 6 weeks now. I could nt really say if it helps or not. On the nitrates side of things as I have a top pond. Full of plants. That control s
    Nitrates anyway. I installed it for more bio.
    But you know how the saying goes.
    You can t have enough filteration.
    And going by what a lot of bakki users say.
    It does work on nitrates.
    Fred



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  15. #50
    Senior Member Rank = Supreme Champion freddyboy's Avatar
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    Nice to hear there is a slight improvement
    With your fish mate.

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  17. #51
    Quote Originally Posted by freddyboy View Post
    Nice to hear there is a slight improvement
    With your fish mate.

    Sent from my SM-G960F using Tapatalk
    Thanks Fred,

    some are still rubbing but up more now and all are feeding no sitting on the bottom.

    with my bakki shower haven't noticed any benefits other than water clarity slightly improved though i only have 1 x 10kg bacteria house , 1 x large lotus root , 2x lotus root small.

    my understanding is a fast flowing bakki has little benefit on Nitrates but very flow flowing has a bigger improvement ,

    think cooler weather improving my PH was 7.5 this morning warmer weather causing more carbon dioxide to be absorbed in the water which then pulls the PH down.
    im hoping an increase in carbonates will keep the PH Higher in warmer conditions

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  19. #52
    JUST ordered new roofing for my fish house 10mm clear polycarbonate 2100mm x 2000mm x 6 sheets, roof snap down roof bars, an all the other bits needed

    hated the existing tiled roof, ment needing a flood light over the pond during the day
    i hope it give me pond some benefit of natural light and sun shine , will need a UV can see it now , hopely some green algae and the pond surfaces will help lower nitrates as well.

    fish are much happier today, maybe the accidental 10% water change that lowered the nitrates slightly have helped
    my drum filter float switch stopped working causing the drum to stop cleaning , causing my bio to dump 900 litres of pond water out of the pond over flowing the walls.. ffs
    the float switch built up with algae residues /crud stopping it making contact difficult to clean as its so far down in the drum

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