The frequency of feeding angelfish can be adjusted according to specific circumstances. Generally, it is recommended to feed them 1 to 3 times a day. For adult angelfish, it's more appropriate to feed them 1 to 2 times a day, and it's best that they can finish the food within 5 to 6 minutes each time. If the keeper has limited time, they can choose to feed the fish in the morning so as to ensure that the angelfish have enough time to digest the food. Besides, the amount of food should be adjusted according to factors such as the size, age, water temperature and water quality of the fish. Young fish need to be fed more frequently, while adult fish can have their feeding frequency reduced.

To ensure the health of angelfish, the following points should be noted when feeding:
Water quality management: Keep the water clean, change the water regularly, and avoid water pollution.
Food variety: Angelfish are not picky eaters. You can provide a variety of foods, including pellet feed, bloodworms and so on.
Feeding amount: Adjust the amount of food flexibly according to the eating speed and activity level of the fish, and avoid overfeeding which may lead to water pollution.
Through reasonable feeding and management, the healthy growth of angelfish can be ensured.