In this study, we established artificial propagation techniques with the aim of increasing the freshwater ornamental fish market competitiveness. This year, we focused on small-size freshwater ornamental fish, collected different species of Characidae and tried to breed and fry nursing. The experiment was successfully obtained on Moenkhausia pittieri larviculture and recorded the morphosis and growth trend. Also tested the effect under the different light periods for the reproduction of Hyphessobrycon amandae . The Result shows that 12 Hcondition can improve the reproduction. The biology information can be used for future research.