Re: [Killietalk] Hatching Eggs - gardneri and Aphyosemion

["Al Anderson" <augustand at sbcglobal_net>]

As I understand it some areas of Indonesia are covered with peat bogs that
catch on fire and are very hard to put out causing a lot of air pollution. I
am sure he can get peat there.


Al Anderson
6246 N.Rural St.
Indianapolis IN. 46220
317 253 2170
317 445 9570
augustand at sbcglobal_net
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-----Original Message-----
From: killietalk-bounces+augustand=sbcglobal_net at aka.org
[mailto:killietalk-bounces+augustand=sbcglobal_net at aka.org] On Behalf Of
unclescott at prodigy_net
Sent: Sunday, June 28, 2009 5:26 PM
To: killifish discussion list
Subject: Re: [Killietalk] Hatching Eggs - gardneri and Aphyosemion

Most of the time, many of those keeping gardneri, put them in water that has
been treated (for chloramines, heavy metals...) and "seasoned" a day or 20.
Though this is a bit controversial, I would leave the eggs out of strong
light. Watch for any white fungusing eggs and remove them with an eye
dropper. Most eggs will either die infertile or be obviously developing in a
couple of days.

Roger must be keeping his eggs in pretty cool and (for humans) comfortable
temperatures. In the mid 70s F/23-25 C water incubated killie eggs may hatch
in about 14 days. At 80 F/26.7C they will hatch sooner. In the middle 80s/
29-30C a batch of pupfish eggs hatched in a week.

At the other end of the spectrum, in a new residence, I left a tray of
gardneri eggs in a cool workshop area, because there was available table
space. After a two month wait I woke up and checked the temperature - in the
middle 50sF/ 13-15C !

You mention that you left the sample egg in water for three hours. You may
be doing what is mentioned in the next paragraph. However it is ok to leave
plant spawners' (Aphyosemion) or switch spawners' (gardneri) eggs in the
water all of the time. They will hatch out in their own time.

One can also pick them off of a mop and put them on very wet peat in an
enclosable container. In two weeks immerse them if they look well developed.
The peat should be wetter than with annuals. The advantage is that they all
hatch at once.

Sometimes, owning to academic studies, job responsibilities, in our case two
kids in diapers or other "life stuff", we may not have as much discretionary
time as we previously enjoyed. I switched several of our tanks, including
gardneri tanks, over to planted aquariums stocked with just an initial pair.
The so-called "natural set-ups" allowed me to stay a little active in the
hobby, with a modest but pretty reliable appearance of fry.

Al (in the Rivulus obscurus thread) mentioned putting ripe killie eggs in
water in a vial or a very clean medicine bottle and carrying them around
while they work in the fish room. (Those were the only days I wore a sport
coat to my job - I needed extra pockets.) Some people will breathe in the
vial before closing it to leave a little CO2, which may help the chorion
dissolve.

In the same thread Lee mentioned putting eggs in a full glass vial that has
been sealed. Eggs in a full small jar, sealed with a rubber band and plastic
wrap will also work. The deeper the aquarium, the more likely that will
force the fry out of the eggs.


George Maier and some of the old-timers would put a few micro worms into
that vial that was carried around or put in the glove compartment for a
Sunday car ride. Probably the microworms again add some carbon dioxide to
the water. George kidded that the fry saw the live food out there and wanted
at it!

Lee also mentioned that after some hours one has to get the eggs out of a
vial or sealed jar. They will suffocate otherwise. Most "mystery deaths"
after a person has brought a vial of eggs at a killie club auction or has
taken delivery of a box with eggs in the mail are because of that.

Charlie Nunziata and Jim Gasior have also beaten the drum for a complete
water change after the first week incubating in water. As they note,
metabolism and the release of some waste material takes place even with the
eggs.

For more on force-hatching go to
 http://fins.actwin.com/killietalk/ 
and search for 
force hatching killifish eggs.

By the way Frans, will you be able to import peat moss into Indonesia?
American officials tend to keep "dirt" out. They accept aquarium plants but
will not allow Tropica's potted plants in. I think some eggs in peat moss
have been allowed by contending (and labeling) that the peat has been
sterilized.

All the best!
Scott

-- On Sat, 6/27/09, Frans Thamura <frans at meruvian_org> wrote:


    From: Frans Thamura <frans at meruvian_org>
    Subject: Re: [Killietalk] Hatching Egg Garneri and Apys
    To: "killifish discussion list" <killietalk at aka_org>
    Date: Saturday, June 27, 2009, 11:02 PM

    >
    > The Apos. lay eggs on plants and they incubate only 21 days. They are
ready
    > to hatch when you can see the eyes of the little fish inside the eggs.
This
    > is true of all killifish. How long it takes for the eggs to "eye up"
depends
    > on the sort of fish you are breeding.
    >


    i have put the eggs in the water, is it ok ?
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