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Aphyosemions -vs- Notos
There has been much discussion of late regarding which killies a new
beginner should keep. While many Aphyosemions are good starters, the peat
spawners such as Notobranchius and the ever popular Gularis top the lists.
Discussion have included water quality and Lee Harper has even eluded to
lower temperature 5 degrees in incubating eggs. Let me me add my 1.54 cents
(taxes preempt rounding to the nearest whole penny) to the discussion. I
have found that temperature play a *major* role in breeding success of both
the plant and peat spawners. The summer months with the higher temperatures
cause many killies to slow down in their breeding activities. I have found
this particularily true with A. riggenbachi. During the summer months when
the temperatures rise, they don't lay as many eggs. When it's cooler they
produce better. Even when I try to trick them by modifying or controlling
the temperature, they seem to know. It must be there own *internal* checks
that control their productivity. I have seen this same event in the Notos I
keep.... Egg production declines in the females during the summer heat.
While I live in Montana, and due to fact that I'm not a scientist, perhaps
it is our own experiences that should forever be a guide for us to learn from.
Greg A. Simpson