Hoshikin Jumbo Kohaku Tosai

[dtbh]

Quote: Originally Posted by MikeM Have you figured out what it was and what medication was provided?

Yes, I am curious to know too.

Thanks so much for sharing your (bad) experience. The pictures you posted are nice. I glad the remaining ones are doing well and hope they'll continue to do so.

[JasPR]

The problem with a lot of these koi is that they are grown all winter and spring in high temperatures and moving them out of those conditions to more natural conditions often causes disease to take over. Since they have juvenile immune systems they are left helpless in seasonal conditions. JR

[MikeM]

JR, your comment brings to mind a sad experience I had last year with two 10" tosai. Within a week of being out of quarantine, they came down with "something" that I'd guess was an internal bacterial infection. Although languishing, trying to catch them for close observation was impossible. They would dive to the bottom. One was lost within a few days. The other came through... and is now around 24". I never did figure out what it was for certain. (There was some gill damage on the one that died, and a pinkish hue in the abdominal area, making me think it was bacterial.) Tosai can be quite delicate and susceptible.

I'm curious regarding the medication used in this instance, because it might come in handy. I enjoy tosai too much.

[saratogatan]

I've seen a yellowish power type of poison from Japanese which I was told 'cures everything'. Don't know if Russ use that magical portion.

stan

[dick benbow]

yellow powder? Sounds like elbagin....Russ put a pinch between his cheek and gum whenever he sorts fish <Grin>

[Russell Peters]

I don't really know what they had, but I do agree with JR in that their weekend state allowed whatever they had on them to take over. An interesting note was that there was absolutley no gill damage. Whatever it was concentrated on the scales and flesh.

I don't know what the medication is either as the packaging only has Japanese writing on it. Here are pictures of the two medications.

[Brutuscz]

any thoughts on getting a culture and sensitivity? Might be a good idea. I don't think it's the last we have heard of this bacterial strain. Knowing the specifics might save you a ton of money and heartache in the future.

[Russell Peters]

Quote: Originally Posted by Brutuscz any thoughts on getting a culture and sensitivity? Might be a good idea. I don't think it's the last we have heard of this bacterial strain. Knowing the specifics might save you a ton of money and heartache in the future.

We did think about it but once we saw how quickly the treatment worked we got rid of the dead Koi. We don't think that this is specific to just growing Tosai very quickly. We import Maruyama jumbo Tosai every year and have never had this problem with them. We know the symptoms and if we see it happen again to other Koi we bring in we won't hestitate with the treatment. Perhaps then we might get a culture.

[MikeM]

OK, where's Dinh? He usually can provide translation.

[schildkoi]

Although Elbagin normally comes in a yellowish/orange package, I have also gotten it in the silver packaging as pictured. 10 grams per ton of water (264 US gallons).

Steve