This species is an egg-layer: females scatter eggs in the water column, which are immediately fertilized by males. Their parental instincts are weakly expressed, so immediately after spawning, the fish may eat their own eggs and hatched fry. For successful breeding, it is recommended to use a separate spawning aquarium to ensure the safety of the offspring. The decor of such an aquarium is quite simple; special attention is paid to the substrate, which should consist of sufficiently large particles forming many voids, such as pebbles or decorative glass beads. When the eggs sink to the bottom, most of them fall into these voids, becoming inaccessible to adult fish. A similar effect is also achieved by using a fine mesh net fixed to the bottom. Another way to preserve the eggs is dense planting of low-growing, small-leaved plants or mosses, such as Riccia fluitans or Java moss, which cover most of the substrate (in this case, the substrate can be any). Dense thickets of plants serve as reliable shelter for the eggs no worse than a special substrate. The spawning aquarium usually has a volume of 20–30 liters. Equipment used includes an aerator, a heater, and a simple low-power sponge filter to prevent accidental suction of eggs and fry. Spawning occurs in dim lighting, so no light source is required at the beginning. The breeding period begins when the females become noticeably rounded and the males actively show attention to them. By this time, a separate tank should be prepared, filled with water from the main aquarium, then several females and the brightest males should be transferred there. The end of spawning is easily determined by the females – they become slender. After this, the fish are returned. Fry appear after 24–48 hours, and after another 3–4 days, they begin to swim freely. Young fish should be fed specialized microscopic food.