While browsing the net today, I came across this spanish cyprinodontiformes forum.
http://soesic.foroactivo.net/

Interesting to me but too bad I can't read spanish, even with the google translating tool, its still hard for me to decipher the information in the forum, the only thing I could do was to drool over the photos of the species they offered on their site. Do visit the site as I believe they have quite a fair bit of information about this order of fish.

I would really like to breed some of these beautiful fishes one day when I have time for them, perhaps killies species like rivulus xiphidius or tenuis...who knows.