They are tropical coral reef fish so the biggest threat to them currently is global warming and its effects on the tropical reefs like the bleaching (killing) of coral.
Angelfish are quite closely related to butterfly fish.
they are peaceful so any mean fish such as large damsels, some angelfish, sugeon fishes and triggerfishes
Dwarf Angelfish are among the most colorful fish, making them very popular. There are about 30 species. They look similar to the full sized marine angelfish and are often confused with the butterfly fish, except that their average adult length is 3.5 inches.
Animals that eat coral are fish, bacteria, angelfish, butterfly fish, parrotfish, sea slugs are some animals that eat coral.
There are not many fish that are compatible with Angelfish. Only Angelfish are truly compatible with Angelfish.
The angelfish is a breed of fish.
Bigger fish eat angelfish such as catfish.
Algae are in a symbiotic relationship with coral.Parrotfish, butterfly fish, angelfish, sea slugs, snails, worms and the crown-of-thorns starfish all eat coral.
Angelfish look like normal fish, but they are among the most colorful; they are typically the most common choice for freshwater aquariums.The angelfish is typically confused with the butterfly fish (its close relative), in order to tell the difference you will notice the spine located on the lower part of the cheekmost angelfish are rounded like a pancake and they can grow from 3-20 inches!You can search it at Google to see a picture of it but I'll tell you how an Angelfish looks like. Angelfish are Black or gray, yellow and white.
An angelfish is one of two varieties of fish, a Freshwater Fish of the genus Pterophyllum, or a marine fish of the family Pomacanthidae.
Angelfish eat other fish.
I am not sure of the question but an Freshwater Angelfish is sold as a freshwater tropical fish.