Angelfish are known to glide around a tank but they are aggressive eaters and once they see you coming, they scoot up towards the top of your aquarium in order to be first in line for food. When you have angelfish in a community aquarium with other fish, you have to learn to feed them sufficient food so the less aggressive fish get fed as well. They are not picky eaters and eat everything that is fed to them. As with every fish, a mixed diet of foods should be offered.
Angelfish are very curious about their surroundings and can get territorial. Sometimes when they’re in the breeding mood, they will chase other fish, bite and nip at them until other fish learn to stay away from their territory. For this reason, angelfish are not always the best fish for a community tank.
Because of their vertical height and length (up to 7 inches), angelfish should be kept in large and tall aquariums.
Here is some data on angelfish: