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Help
regarding Ghost Koi 1/20/08
Dear Wet Web Media Crew
Great web site, which I often look to for inspiration but this is the
first time I've actually tried posting a question.
My question is regarding a ghost koi who is about 4" long and has been
housed in 40" deep garden pond of around 440 gallons (2,000.00 litres)
with twelve other smaller or similar sized fancy goldfish.
For a while now I have noticed what I thought appeared to be fungus
growing around the ghost Koi's dorsal fin and the base of the tail fin.
<I see this... pox>
But after catching the fish and re-housing him in a small hospital tank
in readiness to treat him with a proprietary anti fungus fin rot
treatment I was surprised to find what I thought was fungus doesn’t look
anything like the woolly mould like growth I was expecting but more like
some sort of ulcer. Other than these various "lesions" growing on the
Koi's body all else seems fine, i.e. swimming normally, feeding well
etc.
I have regularly tested the pond water quality where the koi was
recently caught from and in the two years the pond has been operational
the Ammonia, Nitrite and Nitrate have never been any cause for alarm.
<Good, and well-reported>
If you could spare a few moments to look at the attached photos of the
Koi and any advice you or any one else in the Wet Web Media Crew good
give would be greatly appreciated.
Thanks again for a great web site.
Yours in anticipation
Simon B
<Not to be an alarmist... as I could be wrong... this doitsu Ohgon
appears to be a bearer of carp pox... Please take a look/read on the
Net... Perhaps via Google, Images... and let's chat further. Bob Fenner>
Re: Help regarding
Ghost Koi
Bob
Many thanks for your very prompt reply. After doing a bit more research
as you suggested, it would seem that your initial diagnosis of Carp Pox
was correct.
From what I gather Carp Pox is a viral infection, similar to the Herpes
virus in Humans and some people say that it can be brought on by poor
water quality and stress.
<Yes>
The fish was purchased in early September from a well known garden
aquatic centre here in Oxfordshire UK. But was caught by a Saturday
moron, who franticly chased the fish around the tank with an over sized
net, before finally catching it, then roughly manhandling it into a bag
after its fin rays became completely stuck in the nets mesh (I don’t
shop there any more)
<I certainly don't blame you>
so I guess that could explain the stress part, but like I said my pond
water quality is regularly tested and hasn’t ever been a cause for
alarm.
I did read that the “Carp Pox lesions” can often go down by themselves
in the summer months and indeed simply raising the water temperature can
apparently sometimes cause the lesions to go down.
<Yes, sometimes>
If this is correct the fact that the fish is now in a small hospital
tank in the heated living room could put this theory to the test,
although the fish doesn’t particularly seem to be enjoying his new
smaller surroundings and seems to rarely venture out of the two flower
pots that were put there to give him a bit of a feeling of security.
Do you think it would be smart to keep the fish in its new home until
late spring now, rather than returning it to the unheated outdoor pond
which is currently around 10 or 11 oC (unusually mild British Winter,
probably making up for all the flooding of July 2007).
And from what I have gathered Carp Pox is incurable but more unsightly
than harmless, is this correct?
<Mmm, can be... unfortunately this "plague" is often tied/linked to
incidences of furunculosis/ana aki... Aeromonad infections that can be
trouble...>
Or do you know of or have any experience of a medication that actually
works,
<Ah, no>
because I don’t really want to go needlessly bombarding the fish with
chemicals for a condition that I understand wont kill it
and may improve by it’s self, is that correct?
<Yes>
Well thanks again for your earlier reply and a great web site, I promise
I will set up a Pay Pal account and make a small donation for its up
keep.
Simon B
<Simon... I do wish we could quickly communicate... such that your mind
might be more at rest. The gist of what you write is so... there is not
much to do other than keep the one fish isolated (from the rest of your
Nishikigoi), do what you can to provide good water quality, bolster its
immune system... and hope. Cheers, Bob Fenner>
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Re:
Help regarding Ghost Koi – 1/28/08
Hi Bob
Hope this e-mail finds you and the rest of the wet web media
crew well.
<Thank you my friend, yes>
Apologies for being a bit slow with the communications but our
e-mail access hasn’t been working for a while and besides this
whole Internet revolution thing passed me by I bit and I am
still a newcomer to it all.
<Better late than...>
Any way just to keep you up to date on your original diagnosis
of Carp Pox affecting my Ghost Koi. Since we did last
communicate after I moved the fish from the pond into the small
hospital tank in the heated living room all lesions appear to
have completely disappeared!
Literally to the point where you can now barely even see any
trace them. So it looks like that higher water temperature has
done the trick.
<Mmm, yes... and this "cure" points to another probable root
cause here... Aeromonad involvement/Furunculosis/Ana aki...>
Am still not quite sure what to do with the Koi because I am
thinking that as soon as I return him to the lower water
temperatures in the pond, the Pox lesions will return as quickly
as they seemed to have disappeared.
<Likely so...>
But as you can see from the attached pictures his present living
quarters can only be considered as temporary but at least he
seems to be getting used to all the attention from the cat ( but
I think I will keep the aquarium lid gaffer tapped down just to
be sure)
If I did return the koi to the pond in spring (who knows last
April here in the UK was apparently the hottest since records
began) are the Pox lesions likely to return each subsequent year
as the water temperature drops again in autumn?
<Only time, observation can/will tell... but this is what I
would do>
I did a head count in the pond today and all the other inmates
appear to be in fine health but I was wondering is the carp pox
virus only contagious amongst other koi or will the other “non
Koi” pond inhabitants (common goldfish, comets, shubunkins and a
couple of seldom seem weather loaches). be at risk each year?
<The viral aspect is more universal than Aeromonad outbreaks...
which tend to run in "ones", "twos" unless a virulent stage
and/or severe "challenge" occurs>
Well thanks for all your earlier assistance.
Simon
<Please do read here:
http://wetwebmedia.com/PondSubWebIndex/holedispd.htm
and the linked, related FAQs file above. Bob Fenner> |
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