The theoretical lifespan of black angelfish is 5 to 6 years, and the lifespan of wild black angelfish can be about ten years, but the actual lifespan of most black angelfish is 4 to 5 years. The life expectancy will be shorter. Generally, it will start to age significantly in about 3 years, which may be related to sufficient food and fast metabolism. Therefore, it is better to raise fish from an early age. It has a sense of accomplishment and can also slow down the update speed, but it is estimated that there are not many people who can take care of the fish.

The black angelfish, this fish has a relatively flat body Disc-shaped, body color is relatively dark black. The males of this fish are larger than the females, and their heads are slightly raised and thicker. From the appearance alone, the black angelfish is a dark piece, but their temperament is relatively mild. Because they look noble and elegant, and have a certain ornamental value, many aquarists now keep this kind of fish. Their main food is small animal food.