Reproduction

  Interesting  courting the male fertilizes the female, typical of Mexican carp. Males are very temperamental and constantly court females. After fertilization, the female embryos  wear  from 6 to 7  weeks. An adult female can vomit  up to 15 pups, the number of pups hatched depends on the size and age of the female. During development embryos  nutrients are received through a special organ called trophotenia, through which embryos  they absorb nutrients, oxygen, ...  after the birth of the pups, the trophothenia is still visible, but disappears  after a few days. When they hatch, the young are about 1 cm in size, which means that they can be fed crushed flakes, artemia, water fleas and finely chopped  steamed vegetables (nettles, spinach ...). In well-overgrown and large aquariums are young  they can hide from their parents, but they also do not eat puppies in principle. The gender difference can be distinguished at size 1.2  cm, and reaches sexual maturity at size  1.5 cm.  Reproduction is not possible in overheated water. If we want to preserve a colony of fish, the water should never exceed 20 degrees.

Interesting

  Coloring:  Both sexes are in  gray-yellow  to light yellow  color. The upper half of the body is darker, it can be colored cream  to yellow.  Males have  dark bordered  fins, almost black. Small on the body and fins  or larger yellow-gold spots.  In some populations, light yellow to orange or gold colored with dark edges.  Some  females are completely yellow  but gold.  The paired fins are transparent or slightly grayish. In general, there are many variations.

Fish in the wild live in very different habitats with very different water parameters, from soft to hard water with a pH of 6 all the way up to 9 where the upper limit is. The highest area where they are present in nature is the lagoon  de Zempoala which lies 2800 meters above sea level, it is the highest habitat where any species of this family lives.