When the three rat fishes reach the breeding period, the body color of the male fishes will become brighter and the body color of the female fishes will be relatively dim. At this time, it is best for breeders to adjust the water temperature to 26.5 ℃. It is best to replace a small amount of water in the fish tank with distilled water. If the nitrification system in the fish tank is sound, it is recommended to replace two-thirds of distilled water. This can effectively stimulate their estrus and spawning. Before breeding, the male and female fish will keep chasing each other, and during the pursuit, the female and male fish will complete mating. After successful mating, the female fish will choose a quiet and hidden corner to start producing. After the production is completed, both males and females will have the habit of protecting eggs, and they will always guard around the eggs until they hatch.

1, water temperature: Three rat fishes are also a variety of rat fishes, and their habits are quite similar to those of rat fishes. Generally speaking, to raise them, it is necessary to keep the water temperature at 24-30 ℃. If conditions permit, heating rods can be installed to keep the water temperature in this range.

2. Water quality: Three rats and fish like weak acidic soft water, which is sensitive to the fluctuation of water quality. Breeders can't change water frequently, but only once a week.

3. Feeding: Three rats and fish have low food requirements, so breeders can feed them with animal feed and synthetic feed, which can ensure balanced nutrition. Animal feed can choose red worms, bumper shrimps, silk earthworms, bread worms and other foods. It is best to choose sinking synthetic feed, because all three rats and fish are looking for food in the lower layer.