It is better to mix moonlight fish and swordtail fish, because moonlight fish can hybridize with swordtail fish to breed new species, but during the breeding period, pay attention to adjusting the breeding environment:

The breeding water temperature of moonlight fish is 25-26℃. During the breeding period of moonlight fish, male fish The body color of the moonlight fish will gradually become darker and brighter, and the anal fins evolve into the vas deferens; while the female moonlight fish has an enlarged abdomen and a lighter body color than the male fish. If the moonlight fish has these characteristics, it is necessary to adjust the water temperature in time.