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N. rachovii



>Folks........sorry for the confusion in the last note.  The N. rachovii
>I got of Barry's from the AKA convention were NOT the "black
>rachovii"....just the normal strain.  They were the "Biera" 91.  So I
>get from your note Barry, that fishes in the wild have different 'dry"
>times?????  I should assume that "Biera" 91  and "Biera" 98 were the
>same local, but now the "Biera" 98 require LESS "dry" time than "Biera"
>91 even though they are "the same" fish.......well same local!  They
>have changed that much in 7 years!!!!
>
>Dale........was your response for the "Biera".....normal rachovii, or
>for the "black rachovii" ??
>
>But here again.....why an I getting OK hatches at 9-10 weeks for the
>conditions I am giving them.  Can, or should I assume I will get a
>better hatch if I redry and leave the peat for another .....what 1-2-3
>weeks or should I wait your full 6-7 months.  I pull the peat every
>ohhhhhh 2-3 weeks.
>
>Sorry to be so silly about this but, the N. rachovii is an absolute
>favorite of mine and I would like to maximize the output.....get it
>right.
>
>My reference to the "black rachovii" was only because Barry had thought
>he might have a pair availiable for me at the AKA Convention via a
>discussion Barry and I had 5-6-7 months ago....Again.....sorry for the
>confusion.
>
>Mike

Mike,

Based on my limited experience, but the much greater experience of Brian
Watters, virtually all Nothos will show this phenomenon. If you bring back
wild fish, their eggs will require a relatively short incubation period.
Eggs from subsequent generations will show conventional incubation periods.
The reasons must be environmental, but nobody knows why this occurs. I'm
not sure why you are getting such success at what is certainly the short
end of the spectrum for N. rachovii. It may have to do with the
aerobic/anaerobic state of your peat, the degree to which you dry it, and
incubation temperatures, and who knows what else. I guess the bottom line
is that if it works for you, go with it.

Barry

__________________________________________________________________
Barry Cooper, Chair			email:  bjc3 at cornell_edu
Department of Pathology			Voice:  (607)253-3336
College of Veterinary Medicine		FAX:    (607)253-3317
Cornell University
Ithaca, NY 14853
__________________________________________________________________



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