1. Feeding: All the animals are fed with nutritious animal feed and white sesame seeds. Animal feed such as Daphnia, earthworm, Tenebrio molitor, caterpillar, dermatophagoides, etc. The main feed is earthworm and white sesame. Both red and black earthworms can be fed. You can feed raw white sesame seeds. White sesame seeds are easy to buy. Goldfish love to eat, it is easy to digest, and it is not easy to pollute the water. Don't feed the inferior goldfish feed. Because this kind of feed has too much starch, poor nutrition, difficult digestion, and easy pollution of water quality, goldfish will grow slowly and get sick easily if they eat malnutrition. Goldfish will not die as long as they eat digestible food. When to feed, usually once a day in the morning and afternoon, it is not advisable to feed more until it is eaten up. Otherwise, it will pollute the water.
2. Lighting: It is best to put the fish tank in a place where there is sunlight for 1-2 hours. In this way, ultraviolet rays of sunlight are used for sterilization. Play a role in preventing diseases. This can reduce diseases. Try to prevent fish diseases, supplemented by medication. At the same time, due to photosynthesis, the color of fish body is more bright and beautiful.
3. Changing water: Changing water frequently can increase dissolved oxygen in water. When changing water, you can only change one-third to one-fourth of it, and you can't change a lot at once, so the fish can't adapt. It is very important to keep the water quality in the aquarium clear. There is enough dissolved oxygen in the water for fish to grow and grow fast. Otherwise, it will stop growing or even die. When to change the water is inconclusive, but it depends on the water quality. If the water quality is turbid, change it more, or change it less.