Fwd: Re: New subscriber

["Ed Pon" <edpon@hotmail.com>]

Ken wrote:
>> Not being able to get females happens quite a lot.  It is
>> not very easy to obtain apistos here in Scotland and
>> whenever you do see them they are often all male.  I
>> recently was in a store and they had in stock nijsenni,
>> agasizzi and cacatuiodes all males.  Not very good for the
>> hobbyists or the store as most people who keep these fish
>> do so with the intention of breeding.
>>
Tom wrote:
>Maybe that the mostly of the female A. nijsenni of europe are shipped 
to germany - i
>saw a lot of female fish in the past. But where do the other female 
Apistogramma spec.
>go- i don't know.
>
Uwe Romer wrote about the sex determination of apistos being largely 
dependent on temperature and ph.  I would guess that when a certain 
species of apisto is collected at a certain time and locale, and if they 
were sorted by size (wholesale lists usually list size), you may end up 
with a great deal of one sex-- particularly in young specimens (one of 
the stores I buy from usually ships the smaller size apistos because 
they get more fish in a box).

______________________________________________________