Tropical fish are extremely sensitive to temperature. If the temperature is not right, they will die soon. Different kinds of tropical fish have different requirements for water temperature. The suitable water temperature for most tropical fish is 20℃ ~ 24℃, the breeding period is 25℃ ~ 28℃, and the temperature difference between day and night is less than 4℃.

2. Oxygen

A certain number of aquatic plants should be planted in the fish tank, because aquatic plants will produce oxygen during photosynthesis, which will increase the oxygen content in the water. At the same time, removing dirt in time and changing water frequently can also increase dissolved oxygen in water.

3. Lighting equipment

Put a fish tank in a sunny room. In the case of insufficient sunshine, it is best to accept sunshine of about 1 hour in the morning and evening; If you keep a fish tank in a room without sunshine, you should illuminate aquatic plants with lights, and use 60-watt incandescent bulbs or 40-watt fluorescent lamps for 6 hours every day. Light can make tropical fish grow faster and make fish more colorful.

4. stockings

Tropical fish are kept in fish tanks, and the stocking density depends on the size of the fish tank. For fish farmers for the first time, the smaller the density, the better, and an air pump is needed. For the collocation of the same tank of fish, quiet fish can't be mixed with aggressive fish; Big fish can't mix with small fish. There are many choices of feed for tropical fish, such as fish worms, red worms or packaged feed suitable for different kinds of tropical fish. Both raw bait and live bait should be washed to control the source of the disease.