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Thread: Costia - Help!

  1. #21
    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    You may find this helpful if you've not treated before:



    https://www.youtube.com/watch?v=LMQ57B7umgk

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  3. #22
    Extreme Koi Member Rank = Mature Champion pip895's Avatar
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    Sadly my lovely Showa didn't make it through the night. The others aren't nearly so bad and seam relatively stable. They have been sulking for a couple of weeks - my previous attempts at scrapes showed nothing - I took two scrapes from the sick fish yesterday afternoon and only the second showed costia - but they were clear as day on that one. I've now watched loads of pp treatments on YouTube.
    I will be watching very carefully once the PP goes in - ready with the ST.

    Thanks for all your replies.
    6000g in ground koi pond
    +3000g lily/Anoxic pond attached
    29 koi (40 to 65cm)
    Bottom drain, Mid water & Skimmer to Drum
    JBR boichamber->Blue eco 500 pump ->below surface return.
    Blue Eco 240 -> Large MB -> Waterfall -> Planted Anoxic pond (25 baskets)

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  5. #23
    Senior Member Rank = Supreme Champion freddyboy's Avatar
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    Sorry to hear of your loss pip.

    Sent from my SM-G925F using Tapatalk

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  7. #24
    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    So sorry to hear Pip. Good luck with the treatment.

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  9. #25
    Having read this post, it made me think that whilst the introduced koi may look fine, that does not discount them bringing in any parasites.

    Hope the the koi recover pip.
    ian

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  11. #26
    Senior Member Rank = Grand Champion RoyLittle0's Avatar
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    Quote Originally Posted by RS2OOO View Post
    You may find this helpful if you've not treated before:
    Me and the wife have spent hours watching Adam Julyan video's, down to earth and very informative
    4600 Gallon Concrete Block and Fiberglass
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    Bakki Shower - 30 KG Sakura Far Infrared Media
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    Heated from house boiler through a heat exchanger
    Idealseal MS290

    My Pond Build

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  13. #27
    Senior Member Rank = Grand Champion RoyLittle0's Avatar
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    Quote Originally Posted by pip895 View Post
    Sadly my lovely Showa didn't make it through the night. The others aren't nearly so bad and seam relatively stable. They have been sulking for a couple of weeks - my previous attempts at scrapes showed nothing - I took two scrapes from the sick fish yesterday afternoon and only the second showed costia - but they were clear as day on that one. I've now watched loads of pp treatments on YouTube.
    I will be watching very carefully once the PP goes in - ready with the ST.

    Thanks for all your replies.
    We had costia a few months ago, no idea where it came from, we haven't introduced anything for 5 -6 months, it must be dormant or there was just a couple left over from last year that we didn't kill off with the FMG, luckily the wife spotted one of the fish flashing, if she hadn't of seen that it would have been another week before we could get one out to scrape and that could have been a whole different outcome
    4600 Gallon Concrete Block and Fiberglass
    2100 mm x 710 mm Infinity Window 32mm thick glass
    2 x Aerated Bottom Drains and Skimmer
    Filtreau HiFlow 30 Drum Filter
    Bio Chamber - 140 litres K1
    Bakki Shower - 30 KG Sakura Far Infrared Media
    2 x 18,000 lh pumps
    Heated from house boiler through a heat exchanger
    Idealseal MS290

    My Pond Build

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  15. #28
    when I had costia I wiped it out with 1 dose of p.p, I wasn't prepared to take any chances of not getting it all, especially having just lost a fish, so I used it very slightly stronger, im talking like an extra gram added to the normal 38 grams or whatever it is I use, and I left it over 4 hours, about 6 hours iirc, i had to top it up twice to keep the colour.

    I wouldn't recommend anybody doing that, but I was there the whole time monitoring, and ready with s.t if needed, tbh p.p has never visibly bothered my fish, f.m.g doesn't much either , they will come up and eat an hour after its gone in. I always use any chemical with care and accuracy but using p.p and f.m.g doesnt bother me at all, its just part of koi keeping for me, and I suspect for most if they could admit it!.

    The only treatment I ever had problems with was Colombo alparex, dunno why but that was proper toxic to my fish. I used supaverm last year and they didnt like that, but never at any point did i feel like any of the fish were at risk, and after that I had a brilliant season, never saw another fluke...…..until I brought a new fish .

    All the parasites seem fairly easy to eradicate to me tbh apart from flukes, skin flukes funnily enough, yet its gill flukes that are the egg layers. I know ive got a small number of flukes again now and im raising the pond temperature, so I expect ill be supaverming again at some point this year, but I won't use it till I think its necessary.

    Good luck Pip, sorry to hear the fish died.

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  17. #29
    Extreme Koi Member Rank = Mature Champion pip895's Avatar
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    Its been in 2 hrs so far and I have put in the remaining 15% as it started to loose its pink. Fish seem OK - might be clustering round the air-stone a bit more than they would normally though.
    6000g in ground koi pond
    +3000g lily/Anoxic pond attached
    29 koi (40 to 65cm)
    Bottom drain, Mid water & Skimmer to Drum
    JBR boichamber->Blue eco 500 pump ->below surface return.
    Blue Eco 240 -> Large MB -> Waterfall -> Planted Anoxic pond (25 baskets)

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  19. #30
    Extreme Koi Member Rank = Nanasai Ianb's Avatar
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    Hi Pip, once your Costa has gone keep an eye out for it returning. I lost a really nice fish a few years ago. I had treated then scraped myself, all clear. I also bagged the worst effected fish and took it to my local koi dealer and he confirmed that it was clear only for the Costa to return 2 weeks later. I had only 1 fish effected with with no recent stock added, as with all parasites it will effect the weakest fish.
    good luck
    Ian

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  21. #31
    Extreme Koi Member Rank = Mature Champion pip895's Avatar
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    Well this morning the fish seem OK - the sulkers are still sulking though. The rest seem OK and came up for food. The water clarity is pretty bad - and there is a brownish scum on the surface. Is this normal? I guess its using ST rather than peroxide to neutralise. How do you get the water clarity back - is it just water changes?
    6000g in ground koi pond
    +3000g lily/Anoxic pond attached
    29 koi (40 to 65cm)
    Bottom drain, Mid water & Skimmer to Drum
    JBR boichamber->Blue eco 500 pump ->below surface return.
    Blue Eco 240 -> Large MB -> Waterfall -> Planted Anoxic pond (25 baskets)

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  23. #32
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    Glad they are ok Pip,when I did mine a few years ago I had the same problem and used hydrogen peroxide cant remember the dose though,but it cleared it in a couple of hours.
    John

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  25. #33
    Extreme Koi Member Rank = Mature Champion pip895's Avatar
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    The isue is that I cant see the sulkers very well and I would prefer to be able to keep an eye on them. I have one fish that obviously didn't like the PP and jumped across into the Anoxic pond - she will be a devil to catch in there.

    The drum is going off every 5 mins at the moment I guess that's one way of doing a water change..

    Not sure about putting in peroxide when the active PP has been neutralized by the ST?
    6000g in ground koi pond
    +3000g lily/Anoxic pond attached
    29 koi (40 to 65cm)
    Bottom drain, Mid water & Skimmer to Drum
    JBR boichamber->Blue eco 500 pump ->below surface return.
    Blue Eco 240 -> Large MB -> Waterfall -> Planted Anoxic pond (25 baskets)

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  27. #34
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    The peroxide I used was 3% food grade,it removed all the foam and cleared the pond almost instantly.
    Manky is your man.
    John

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  29. #35
    s,t to neutralise p.p takes quite a while to get clear water again, you will notice it slowly clearing a bit each day after a couple of days, but it will take over a week.

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  31. #36
    Extreme Koi Member Rank = Mature Champion pip895's Avatar
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    Its just I could do with being able to see the fish, and right now I cant. I have ordered peroxide but won't be here for several days.. I had a bit of an issue with clarity anyway - the start of green water - only just got the UV up and running again.

    On a separate note, would it be worth raising the temperature a couple of degrees to help with recovery? Currently I am holding it at about 10 deg.
    6000g in ground koi pond
    +3000g lily/Anoxic pond attached
    29 koi (40 to 65cm)
    Bottom drain, Mid water & Skimmer to Drum
    JBR boichamber->Blue eco 500 pump ->below surface return.
    Blue Eco 240 -> Large MB -> Waterfall -> Planted Anoxic pond (25 baskets)

  32. #37
    they will always fare better in warmer temperatures because the immune system will get going, I dont think it really kicks in till 14 c though, but yes I would still raise the temp, its got to help.

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  34. #38
    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    What's the latest on your Koi Pip, have they now recovered?

    I suspected Costia with mine, more urgently so when you found it considering we both bought Koi from the same source at the same time.

    My scrapes revealed gill flukes, couldn't see any costia. Mine appear to be responding well to fluke solve.

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  36. #39
    Extreme Koi Member Rank = Mature Champion pip895's Avatar
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    Sorry not to respond sooner. No more losses but still a couple of sulking fish. Haven't managed to catch them yet - so there not that sick! Nothing found on the fish I did catch though.

    My dilemma is do I treat just the koi pond again or go for the lot with FMG? The main pond is full of frog/toad/newt spawn and a bog plant area so I'm not convinced I could keep it purple for more than a few minutes! I do have FMG in stock now... But it needs temperatures over 13deg....
    6000g in ground koi pond
    +3000g lily/Anoxic pond attached
    29 koi (40 to 65cm)
    Bottom drain, Mid water & Skimmer to Drum
    JBR boichamber->Blue eco 500 pump ->below surface return.
    Blue Eco 240 -> Large MB -> Waterfall -> Planted Anoxic pond (25 baskets)

  37. #40
    Extreme Koi Member Rank = Gosai Mythril's Avatar
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    I have personally treated with F&MG (38% / 2% not shop bought) down to 4c water temperature twice, seven days apart to kill Costia with zero issues. Now I'm not saying it's the done thing to do but I know from personal experience that PP doesn't, for me at least kill all Costia dead for good. It'll knock it back but that's it.

    I know several people who have treated with F&MG at water temperatures lower than what I have mentioned more times than they've had hot dinners with no ill effects and all bugs zapped. I personally don't use Alperex, I make my own mix of F&MG.

    I have also noticed that F&MG knocks back younger Flukes too. A few seasons ago, I was treating a pond for Costia after a Heron had been in and noticed several Body Flukes on the slide. I treated for the Costia first, partial water change two weeks later and I was returning to administer the Fluke treatment. Upon scraping several Koi I couldn't find a single Fluke.

    It was decided that a wait and see approach to see if the Flukes returned by the customer. No Flukes were found again I was informed a few months later. I would always go down a proper Fluke treatment though if Flukes are discovered. First choice, mainly down to cost would be Flubenol at a double dose strength and in the colder months, Fluke Solve. I will also have to hand shortly Lernex Pro to zap the little critters so this year, they stand no chance !

    My advice would be to go in with F&MG straight away if Costia is discovered. Two doses of PP would be my second choice if F&MG wasn't available at 2g per tonne. One dose on day one and the other on day two.

    This is my personal approach. Others my disagree or have slightly different dose rates.

    Good luck and I hope you nail your parasite issue soon.

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