Fry Observation and a question

On Thu, 20 May 2004 23:10:54 -0500, "Tom L. La Bron"
wrote:

Charles,

Before you make a decision on the fry let them grow up
a bit. When they are very small it is hard to
distinguish all you need to see. Also, view the fry
from the top not just the side, because what may look
like a single tail from the side may just be something
different when viewed from the top.

The genetics of Goldfish is pretty complicated. If the
backs are crooked or misshapen, just discard the fry.
It has also been found if that water has been two cool
during the development of the fry in the egg increases
the tendency for single tailed fish no matter the
variety that are bred.

Also after the fry are hatched the water must be kept
very, very clean. Fry are really susceptible to
ammonia and nitrites and many people make the mistake
thinking all those little fish can't produce that much
waste, but it is surprising that they do. Even the
eggs themselves emit ammonia into their water while the
embryo is developing, which is why a lot of fry die
after hatching because the water has waste ammonia in
in it. Water for eggs and fry must be carefully
changed all the time and you certainly should have
airstones in the container of both eggs and fry.

Good luck.

HTH

Tom L.L.
-----------------------------------------------


The crookedness of the backs that I was talking about is the desired
form in fancy goldfish. That lumpiness that makes it difficult for
them to swim. (It makes them a lot easier to catch, though.)

I have raised several batches of fry, commons and shubunkins, and
thought that I would see something different from the fantails.

One problem with raising them is what to do with them later. I don't
really want them.

I use a large sponge filter and a big chunk of algae in the tank. The
algae brings with it lots of little critters for the fry to eat and
sucks up any ammonia floating around.

Unless I do something dumb my success rate has been good. I did mix
batches with too much age difference one time, the big ones ate the
little ones.

anyway, this just a watching and learning thing for now.


--

- Charles
-
-does not play well with others