> The point of Bruce's comment was that we should be trying to look for
> similar hybrization examples in schooling fish rather than solitary
> ones. His idea being that schools of different species are less likely
> to mix/hybrize together (which may or may not be the case--some schools
> of tetras do mix in the wild I believe). This also assumes that a school
> gets released into the wild or that a school from one species won't
> accept individuals from another species.
I am not certain about how common it is, but schools of some spp of tetras
do mix (reference: an issue of Aqua Geo w/ an article on neons--there are
others too). I do know that many Corydoras spp do shoal in mixed schools
(reference: pers comm w/ both Lee Finley and David Sands, as well as asst
articles in magazines).
Julie Z. <><