Pomacanthidae

Marine angelfish live in warm ocean reefs.

They have very bright colors. Many of them have thin bodies.

Some fish stay small. Other fish can grow quite large.

These fish eat many things. Some eat tiny plants. Others eat sea sponges. This helps the coral reefs stay healthy.

Young fish can look different. A blue fish might turn gray when it grows up. This change happens as they get older.

Some fish live in pairs. Other fish live in big groups. They hide in rocks at night.

These fish are fun to watch.

Marine angelfish live on warm ocean reefs.

They belong to a group called Pomacanthidae. This name comes from Greek words meaning "cover" and "thorn." These fish have strong spines on their gill covers. This helps set them apart from butterflyfish.

Most species live in shallow water. They are active during the day. At night, they hide in cracks in the reef.

These fish come in many sizes. The gray angelfish can grow very long. Other small fish stay under 4 inches. Many species change color as they grow. A young Blue Angelfish is bright blue. As an adult, it turns gray.

Angelfish help the reef stay healthy. Many species eat sponges. This stops sponges from covering the coral.

Some fish live in pairs. Others live in groups called harems. A harem has one male and many females. If the male is gone, a female can turn into a male. This is called protogyny. They also lay many tiny eggs in the water. The eggs float with the ocean currents until they hatch.

Marine angelfish are bright and colorful fish found in warm ocean waters.

They live on shallow reefs in the Atlantic and Indian Oceans. Most of them live in the western Pacific Ocean. These fish belong to a group called Pomacanthidae. This name comes from Greek words meaning "cover" and "thorn."

They have strong spines on their gill covers. This special feature helps people tell them apart from butterflyfish. They are very important parts of the reef ecosystem.

These fish have many ways to survive in the ocean. They have thin, flat bodies that help them move through reefs. Many species have long, streamer-like fins that look like ribbons.

Their eating habits vary depending on their specific group. For example, Genicanthus fish eat tiny floating animals called zooplankton. Other fish, like the Centropyge, prefer to eat algae. On Caribbean reefs, many angelfish eat sponges. This is helpful because it stops sponges from growing over the coral.

This keeps the reef healthy for other living things.

Scientists have studied these fish for a long time. Different experts have worked to name and group them. Some taxonomists place them in the order Perciformes. Other experts place them in the order Acanthuriformes. There are about 86 to 88 different species in this family. These species are spread across seven or eight different genera. Some groups, like Centropyge, are only found on specific islands. This means they are endemic to those small places.

Angelfish come in many different sizes and colors. The gray angelfish, Pomacanthus arcuatus, can grow quite large. On the other side, some Centropyge fish stay under 4 inches. Many angelfish change their look as they grow up. A young Blue Angelfish is a bright, electric blue. As it becomes an adult, it turns a grayish color. The queen angelfish is also very beautiful with neon blue and yellow scales. Some species are even known to change their sex. This is called being a protogynous hermaphrodite. If a dominant male is removed, a female can become a male.

Many people enjoy watching angelfish in large glass tanks.

These fish are often kept by people called aquarists. They are known to be very hardy living things. This means they can handle changes in water quality quite well. They can adapt to different levels of water hardness and pH. Some larger species are even bold enough to approach divers in the ocean. However, you should be careful with some large species. Eating certain angelfish can lead to a type of poisoning called ciguatera.

Marine angelfish are colorful fish belonging to the family Pomacanthidae.

These fish live on shallow reefs in the tropical Atlantic and Indian Oceans. Most species are found in the western Pacific Ocean. They are part of the order Perciformes or Acanthuriformes depending on the scientist.

This family is important for keeping coral reefs healthy. They help manage the growth of other organisms on the reef. They are very different from the freshwater angelfish found in the Amazon Basin.

To identify a marine angelfish, scientists look at specific physical features. They have deep, laterally compressed bodies that are thin from side to side. This shape helps them move through tight spaces in the reef. They are distinguished from the similar-looking butterflyfish by strong preopercle spines. These are sharp spines located on the gill covers. The family name Pomacanthidae comes from the Greek words for "cover" and "thorn."

Many species also have long, streamer-like extensions on their fins.

There are many different types of angelfish within this family. The family contains about 86 to 88 species divided into seven or eight genera. Some groups, like the genus Centropyge, are very small. These fish do not grow larger than 4 inches. Other groups are much larger and more widely distributed. The gray angelfish, Pomacanthus arcuatus, is one of the largest species. The queen angelfish is another famous example with bright scales.

Angelfish have very specific ways of eating to survive. Their feeding habits are often defined by their genus. Species in the genus Genicanthus eat tiny floating animals called zooplankton. Members of the genus Centropyge prefer to eat filamentous algae. Many other species eat sessile benthic invertebrates. These include sponges, tunicates, bryozoans, and hydroids.

On Caribbean reefs, they eat many sponges. This prevents sponges from overgrowing the reef-building corals.

These fish have a very interesting way of growing and reproducing. Many species are protogynous hermaphrodites. This means they can change their biological sex during their lives. If the dominant male in a group is removed, a female will turn into a functional male.

They also show dramatic color changes as they reach maturity. For example, young male ornate angelfish look like females. As they grow, they develop bright orange bands on their bodies.

Most angelfish are diurnal, which means they are active during the day. They spend their nights hiding in the nooks and crevices of the reef. They usually stay in the shallow parts of the ocean. However, some species like Centropyge abei live in deeper water.

Their social lives also vary by species. Some live alone or in mated pairs. Others live in harems where one male leads several females.

Angelfish are also known for their unique relationship with humans. Many people called aquarists keep them in home tanks. They are considered hardy fish because they adapt well to water changes. They can handle different levels of pH and water hardness.

While they are popular, some large species are caught for food. This can be dangerous because of ciguatera poisoning. This is a type of poisoning reported from eating certain marine angelfish.