Re: [Killietalk] Water incubation of annuals

[Barry Cooper <bjc3 at centurytel_net>]

Nick,

I too leave peat containers in tanks for many weeks most of the time. I 
would not expect such eggs to water incubate as they become hypoxic, 
which delays development. As I recall, the species most often cited as 
being able to hatch with water incubation is N. korthausae. However, I 
don't think it is natural and I never do it. I see the incubation period 
of Nothos as an advantage, not an impediment. Probably to successfully 
water incubate you would need eggs that had been spawned in peat kept in 
the tank for only a week or two. I have also been told that water 
incubation produces more belly sliders, but I have no personal 
experience of it.

Barry

Barry J. Cooper
Sweet Home, OR 97386



Nick Ternes wrote:
> Supposedly, water incubation can work on many nothobranchius species.
> I'm not overly interested in water incubating eggs, so I haven't
> looked into it to deeply.  I believe Charlie Nunziata once wrote an
> article on the subject.
>
> I usually let the peat container stay in the tank for months at a time
> and I never find eyed up eggs.  Last spring for guentheri, I had the
> peat in the tank for 3 months and then let the eggs sit in the water
> filled bowl of peat for another 2 months after that so the hatch date
> would be at a point in time where I could take care of the fry.  There
> was no evidence of any sort of developement.  They were kept in the
> high 60s to low 70s at that point, and when bagged were incubated at
> around 76 degrees.
>
> Nick Ternes
> Oostburg, WI
> WAKO
> AKA
>
> On Dec 12, 2007 12:12 PM,  <LeeH920226 at aol_com> wrote:
>   
>> I have tried, several times, to water incubate South American annuals without
>> much success. In most cases the eggs either disappeared or sat stagnant for
>> months, even a year. The only way to get them to move from a clear state was to
>> dry them in peat for a while. Recently I got some Nothobranchius foerschi
>> (one of the few Nothobranchius I have success with). I set them up over greensand
>> and collected several batches of eggs, which for the most part were put over
>> damp peat for incubation. One batch I left in water and now, just 3 weeks
>> later, they are fully embryoed and appear almost ready to hatch. Is this common
>> with other Nothobranchius species?
>>
>>
>>
>> Lee Harper
>> Media PA
>>
>>
>>
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