Killifish for Dummies; Keeping and breeding killifish, as per their genus: Aphyosemion; Nothobranchius; Aplocheilus, Epiplatys and Cynolebius.
Nothobranchius
Breeding Nothobranchius palmqvisti
Although Nothobranchius palmqvisti are not the easiest Notho to raise they are among the prettiest, and if you give them the conditions I have outlined they can be most rewarding.