Spawning pinktail chalceus fish to some level is impossible. You need first differentiate between the male and female, and this task is rather hard. If you are looking for active aquarium occupants, pinktail chalceus fish or also known as Chalceus macrolepidotus will be a perfect choice. This agile fish with a striking bright pink tail and blazing characin loves to play around the surface layers and even jump once in a while to catch food. With the high demand for this species, many are fascinated by spawning pinktail chalceus fish. Interested as well? Keep reading. Sexing the Pink Tail Chalceus How to sex pinktail chalceus fish is rather difficult. The male and female pinktail chalceus fish have almost no distinction. Maybe that is one reason that makes spawning pinktail chalceus fish somewhat challenging, most of the time hard. However, there is one slight pointer to separate between male and female pinktail chalceus fish. The females usually have a slightly bigger belly than males o...