Quarantining of Wild Fish
Contents:
- Amazon diseases
by Marco Lacerda <marcolacerda/ax.apc.org> (Sun, 28 Mar 1999)
- Amazon diseases
by "Maladorno, Dionigi {DRUG~Nutley}" <DIONIGI.MALADORNO/roche.com> (Mon, 29 Mar 1999)
by Marco Lacerda <marcolacerda/ax.apc.org>
Date: Sun, 28 Mar 1999
To: apisto/admin.listbox.com
Kathy Olson wrote:
>
> Marco,
>
> On one of the apisto's we collected (mostly all one site) there is
> something that looks like fin lice. Small 1/2 cm tan cylindrical things
> attached to the dorsal and anal fins of the apisto's. Only on the
> apisto's. What do you treat with to get rid of this.
I've seen this "fin lice" also in bigger cichlids, like Geophagus,
Acarichthys and Gymnogeophagus (the later is not from Amazon). It seems
to be a common parasite through South America.
In small quantities of fish, like 5 to 10 fishes, you can remove the
"lices" by taking the fish out of water, and using a diluted solution of
formaline (I used FMC, a combination of malachite green + methylene blue
+ formaline) applied directly on the lice (with the help of a piece of
cotton at the end of a stick; I don't know the English work for this
object, but I think you will understand it).
Sometimes the lice was "drunk" enough to be then removed from the fins;
when not I repeat the treatment days later until the lice can be
removed.
> How do you treat your new caught fish?
It depends on which fish species.
Normally Rio Negro Apistos have worms (nematodes). So I give them
flubenol (from Bayer) together with the food.
For general condition it seems that the most important is that when
collecting you don't put too many fish together, avoiding the water to
foul. If such happens, then the fish will easily have bacterial
infections.
> We have them all isolated. Some got ich on the way home and are all being
> treated for that. On the boat we had them in fairly large tubs and did
> 50% water changes two times a day. No fish death except 3 apisto's on
> the way home, 3 laetcara and 2 tetras. That is for probably over 100
> fish.
It seems that you treated them well.
> There was one site all the tetras came down with a disease on their tails.
This is probably from the collecting. Tetras don't stand to be out of
water, best way is to get them from the net with a bit of water, what
you can do with a normal glass, spoon or even your hands with the
fingers tight, like a shell.
> Karen Randall thought it might be bacterial infection (? collumaris). It
> only affected one type of tetra, needless to say we did not keep that
> tetra and everyone else is okay so far. It was a fuzzy disease that ate
> there tails.
Yes, correct, tetras are very sensitive about this. Best way is to
prevent this disease, by taking them from the net like so. Also avoid
mud or much fine sand into the net, this destroys the slim fishes have
to protect themselves.
> When you collect what do you use and at what depths?
Apistos, handnets is the best way, as they live mostly inside forests
(some of them, sure). When living in the "praias" (sandy river shores)
two people can use a seine, it is very effective.
For tetras, it depends on their swimming habits; for tetras like
Hatchets, you just need to use your seine on upper level, no need to use
it up the river bottom.
> It was a lot of fun to go, I will say that, next time I hope we can get
> down your way!!
Yes, I hope so.
Collecting is always a great experience. By the way, the Cory you find
at Rio Negro is Corydoras hastatus, not C. pygmaeus.
Lots of interesting fishes, like Aspidoras pauciradiatus, Helogenes
marmoratus (small marbled catfish swimming at middle water), Gnatocharax
steindachneri, Hemigrammus stictus (green, caudal peduncle cherry red),
just to mention a few not normally found at petshops.
> Kathy
Cheers.
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by "Maladorno, Dionigi {DRUG~Nutley}" <DIONIGI.MALADORNO/roche.com>
Date: Mon, 29 Mar 1999
To: "'Apistogramma List'" <apisto/admin.listbox.com>
Kathy Olson <> wrote: <<<<<Amazon diseases
On one of the apisto's we collected (mostly all one site) there is
something that looks like fin lice. Small 1/2 cm tan cylindrical things
attached to the dorsal and anal fins of the apisto's. Only on the
apisto's. What do you treat with to get rid of this.
(...)
There was one site all the tetras came down with a disease on their tails.
Karen Randall thought it might be bacterial infection (? collumaris). It
only affected one type of tetra, needless to say we did not keep that
tetra and everyone else is okay so far. It was a fuzzy disease that ate
there tails.(...)>>>>>>
For fish lice and the like, the best treatment is metrifonate,
which is the active component of Clout or Fluke-tabs for
example. The fin problem is indeed likely to be due to
bacteria, and normally clean water at most with a tablespoon of
salt each 10 gallons should take care of it.
Dealing with wild-caught fish, a treatment for internal and external
parasites is in my opinion a must.
You can for example start with a week of medicated Tetra flakes
for parasites (not the bacterial type, but the parasite type) which
contain metronidazole active on Hexamita.
After that is over, a treatment with Flubenol or Fluke-tabs should
take care of flukes, nematodes and tapeworms. See dosages
at http://world.std.com/~enjolras/symtreat.htm
Good luck and congratulations for the successful trip
Dionigi Maladorno
dionigi.maladorno@roche.com
This message presents personal opinions which are not necessarily those
of my employer.
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