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Inducing Apistos to spawn


  1. recalcitrant spawners
    by lisa wrischnik <wrisch/mendel.Berkeley.EDU> (Thu, 31 Oct 1996)
  2. Cacatuoides chasing neons
    by "Darren J. Hanson" <djhanson/> (Tue, 16 Dec 1997)
  3. talkin' bout the weather
    by Frauley/Elson <fraulels/> (Sun, 10 Oct 1999)
  4. RE: subject...
    by Ken Laidlaw <kl/> (Fri, 21 Jan 2000)
  5. Light Trap
    by <colingorton/> (Mon, 2 Jul 2001)
  6. Light Trap
    by <colingorton/> (Wed, 4 Jul 2001)
  7. Female Bolivian Rams Tubes? and discus question
    by Rich Moore <richard.moore2/> (Fri, 23 Feb 2001)

recalcitrant spawners

by lisa wrischnik <wrisch/mendel.Berkeley.EDU>
Date: Thu, 31 Oct 1996
To: apisto/

Hello everyone,

Gary mentioned having nijsseni who spawned once and then in the same
conditions havn't done a damn thing for 3 months. I've also had this
happen, and one thing that helped was to just move the fish to 
another tank. It seems that "change" helps trigger spawning at times.
I know of one person who got his nijsseni to spawn by adding NaCl
to his tank (he did'nt pH his water, either), and someone else
who had to drop his hardness from 15 to under 10 ppm. I'm fairly
anal about doing weekly water changes, but sometimes I wait
two weeks, and after I do a water change I'll get a spawn (or at
least a little more sexual tension in the tank!).

The only problem with moving fish about is finding an empty tank!
(This is also one of the reasons I don't remove fry from my tanks-
I abhor a tank vacuum and fill them as quickly as possible!)

I've also noticed the classic case of spawning that correlates with
the appearance of a low pressure system (rain as an aprhrodesiac), 
so maybe with the approach of winter we'll get those damn nijsseni
to spawn.

Lisa (who also doesn't mind too much if an archive is set up).

Cacatuoides chasing neons

by "Darren J. Hanson" <djhanson/>
Date: Tue, 16 Dec 1997
To: apisto/

>The male is a lot bigger than the female (nearly twice as big in each
dimension), so 
>maybe she won't be too hard on him.  I don't know if there are any eggs/fry
The easiest way to check to see if the female has eggs is to look at her
coloring. If she is bright yellow than you can pretty well guarantee that
she does. The next thing I do is use a flashlight to look into the 'house'.
They usually spawn on the inner/upper part of the 'house' and they are
usually orange in color.

>On the whole the neons seem to be coping, so I think I will leave them in
for the moment.
If they seem to be doing ok, I would just leave them. And it doesn't matter
how large your male is, if she gets aggressive enough, her small size can
still do a lot of damage.

Good Luck

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talkin' bout the weather

by Frauley/Elson <fraulels/>
Date: Sun, 10 Oct 1999
To: apisto list <apisto/>

Just an observation here - we had a wild day last week, tumbling
temperatures, gusting winds, chilling cold howling in, apistos
Every pair of apistos I had set up spawned, all within an hour of each
other. It was like a factory in here. I've never seen such a
concentrated amount of apisto spawning, and it reminded me of a basic
rule: good things come to those who keep their aquaria set up, even if
the fish don't appear ready to spawn...
There I was, checking old notes to find mysterious spawning triggers,
and once again, I got left behind.

RE: subject...

by Ken Laidlaw <kl/>
Date: Fri, 21 Jan 2000
To: "'apisto/'" <apisto/>

Can somebody tell me how long it takes before a female cackatoo is ready to 
spawn again. 
**With good feeding a female can spawn again in two weeks or so but if
leading fry she is probably happy to look after them for at least a month
before spawning again.

And if you read my previous mail to the list, is it maybe a solution to put 
an extra female in the tank (so that the male has something to keep him busy

while the other female is taking care off her eggs/fry) to keep the male
from eggs and fry? 
**I wouldn't put another female in the tank if she already has fry as the
female and also perhaps the male will try and kill the new addition.  If she
is not then maybe you could add another one.  What size is your tank?  It
must be long enough to give two females enough space.  I'd say you could
keep two females in a tank 60cm long; others would advise on a bigger tank.
Provide plenty caves bogwood and plants.

Ken - Scotland.

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Light Trap

by <colingorton/>
Date: Mon, 2 Jul 2001
To: <apisto/>

It wasn&#8217;t until a couple of days ago that I
realised why, with the addition of MH lighting, all
my fish seemed to start breeding! I&#8217;d heard of
all sorts of breeding stimuli, but never MH lighting.
Anyway it was only when I was in the fish room quite
late that I realised that the MH lights are
attracting more night-flying insects, the get too
close to the lights a quick ZAP and they&#8217;re
floating in the waterJ. Even quite big insects like
Ichneumon wasps seem to be no problem for my intrepid
fish. Some of the bigger ones escape, but most are
tackled bit by bit. This behaviour has also helped me
to realise why so many fish will take food into their
mouths, chew, spit, chew, spit chew and then finally
swallow their food. I think it&#8217;s a sort of
&#8220;de-husking&#8221; thing, like the way people
who don&#8217;t have machines toss grain into the air
to separate the grain from the chaff. Maybe this
behaviour also helps to break the carapace to get at
the juices inside.
Anyway, as a result of this night-time feeding the
fish aren&#8217;t nearly so greedy during the day, so
I&#8217;m cutting back on their day-time feeds. I
think the MHs may even be saving me money!

Light Trap

by <colingorton/>
Date: Wed, 4 Jul 2001
To: <apisto/>

Are you saying your apistos will eat these too?
Come up to the surface to eat insects?

The Nijsenni certainly do, you can see them waiting
for me to switch the light on! The Pandurini don't
but they're in a deeper tank and a bit "slow" and
they're also being pushed around by the Rams. The
Rams are the most obvious beggars for the lights, and
also they are the most fearless, quartering any
insect unfortunate enough to fall in. They seem to
use their mouths as shears and gradually cut the
insect up.

Female Bolivian Rams Tubes? and discus question

by Rich Moore <richard.moore2/>
Date: Fri, 23 Feb 2001
To: <apisto/>

Hi Raymond,

Yup - both male & female will show their breeding tubes or "papillae".
You'll probably see some displaying, digging, substrate chewing/spitting


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