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From Wikipedia, the free encyclopedia. A true breeding organism, sometimes also called a purebred, is an organism that always passes down certain phenotypic traits (i.e. physically expressed traits) to its offspring.n organism is referred to as true breeding for each trait to which this applies, and the term true breeding is also used to describe individual genetic traits.
Dude.. Africa is a continent.... there's 100000s of fish species there. Narrow it down a little to get a good answer. As a general rule, Most of the medium sized ones that fit in a 55g tank live 7-14 years if healthy. That's for the pure bred ones that are from a single genetic strain.hey can live about 6-10 years depending on water quality, how many fry they have (if they are females), and if they have a lot of stress in their lives.