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Topic: Dying Koi (Read 650 times)
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Sunshine
Newbie
 Offline
Posts: 6
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This whole trouble seemed to start, just after a neighbor's 2 dogs went for a paddle in the top pond,
What kind of flea and tick treatment do the dogs have? It just may be that it was enough to weaken your fish and whatever opportune bug or less than pristine water conditions may have taken their toll. Or it may have killed off all the good bacteria in your filtration system and you are going through another cycle. Test for amonia nitrate and nitrite.
If the water is green don't forget the reverse cycle with algae in the water pulling out O2 in the dark hours. Add heat to that and you can get trouble. Turnover is something to think of, but agitation of the surface through a waterfall or fountain or airstone may help if this is the case.
If you are using bore water check the salinity, it can change.
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grasshopper
Newbie
Offline
Gender: 
Posts: 11
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Hi,
about 20 years ago I lived in two rocks, at the time I was into tropicals, trying to keep discus fish alive was very difficult. I recall the water being very alkaline and a hardness of >350 (i needed <50) . Do Koi like hard water???
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Arnie
Newbie
Offline
Posts: 9
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:)Hi Guys
Sorry for the delay, I had to go overseas for a few days, but the good news is the Koi have stopped dying, I tested the water and the parameters were:
Ph 7.5 Nitrites 0.1 Nitrates 2.5
My wife treated the water with some medication to treat flukes, lice, I think it was a broad spectrum antibiotic, I will find out the name, whatever was causing the problem it seems to have cleared, no problems for the last ten days.
I really appreciated your help, and will certainly look forward to reading some of the other posts.
Best regards
Mike
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Arnie
Newbie
Offline
Posts: 9
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Hi again Guys
Just found out the name of the treatment the wife used in the water Anti Parasite made by Blagdon, it was a five day treatment 200ml for every 1000Lt, I was just wondering if it would be worth giving another treatment, it says you can treat again after seven days.
Best regards
Mike
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Arnie
Newbie
Offline
Posts: 9
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Hi Guys
Thanks again for the advice, I will certainly test for ammonia, and see if I can bring the nitrites to zero,
I will be in touch
best regards
Mike
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Arnie
Newbie
Offline
Posts: 9
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Hi Guys
I really do appreciate all the information you have supplied, the water seems fine now 0 nitrites and amonia, the Koi are doing really well.
I am hoping to introduce a couple of yellow koi ( brad did tell me what they were call, but I have forgotten) anyway I will be home again around the 9 March and hope to get a couple while I'm home, just hoping they don't introduce anything into the other fish, as they have been isolated for a few years now.
Thanks again
Mike
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