How to feed tropical fish with straw vat?

It is not difficult to raise tropical fish, as long as there is suitable temperature, fresh air, clean water, adequate feed and bright light. Usually, the water temperature of tropical fish should be kept between 20℃ and 30℃, and tropical fish are particularly sensitive to the change of water temperature, with the temperature difference between day and night not exceeding 4℃. Of course, different kinds of tropical fish have different requirements for water temperature, but if the water temperature is too high, fungi in the water will multiply in large numbers, and fish will get sick if their metabolism is too active.

Tropical fish is stricter than goldfish in water quality. City tap water contains chlorine and bleaching powder, which should be dried before use, or there should be at least 1/3 old water in the fish tank when changing water. Well water and river water should be boiled, disinfected and cooled before use, and the water quality can also be maintained by biological purification. Tropical fish live in sunny environment for a long time, so light is very important for tropical fish. Light can promote the photosynthesis of aquatic plants in the container, accelerate the production of oxygen and the absorption of carbon dioxide, increase dissolved oxygen and promote the growth of fish. In a sunny room, you can receive about 1-2 hours of light every day. However, it should not be exposed to strong direct sunlight. If the light is insufficient, it can be supplemented by lights, such as 40-60 watt fluorescent lamps, which can be used for 5-6 hours a day, and electric heating rods can also be used to control the water temperature.

The breeding of tropical fish is basically the same as that of goldfish. Tropical fish have strong digestive ability, and it is generally advisable to feed them once a day, more in summer and less in winter. If you find that the fish has swallowed the bait and spit it out soon, it means that the fish is full and should stop feeding.