Yellow Angelfish

Yellow Angelfish

The Yellow Angelfish is a bright, lemony yellow with a few silver wiggles that add a beautiful hue to your aquarium.

They are frequently known as the False Lemonpeel Angelfish due to their similarity. However, yellow angelfish are much easier to keep.

In this article, we’ll teach you everything you need to know about caring for yellow angelfish, their tank setup, proper diet, and much more!


Scientific NameCentropyge Heraldi
Common NamesYellow Angelfish, Herald’s Angelfish, False Lemonpeel Angelfish, Yellow Pygmy Angelfish
FamilyMarine angelfishes
OriginThe Pacific Ocean, from Taiwan to the Tuamotu Island / Southern Japan to the Great Barrier Reef
AggressionSemi Aggressive
Minimum Tank Size30 Gallons
Length4.7 inches
Ease of CareModerate
pH8.0 – 8.4 
Temperature72.0 – 82.0° F

Yellow Angelfish Origins & Habitat 

Yellow Angelfish (Centropyge heraldi) was described by Woods & Schultz in 1953. They are found in the Pacific Ocean from Taiwan to the Tuamotu Islands and from Southern Japan to the Great Barrier Reef.

Also, they may be found in the Coral Sea section of the Great Barrier Reef, the Solomon Islands, Fiji, Tonga, and the Philippines.

These species’ habitats are based on their origin and all seem to prefer clearer water with no turbidity.

Yellow angelfish enjoy their habitat on lagoon patch reefs and outer-reef slopes from 16 feet to 295 feet (5-90 m), steep reef slopes from between 49 and 131 feet (15-40 m), and rubble slopes from 30 to 66.

Yellow Angelfish Lifespan

In captivity, yellow angelfish can live for only ten years. However, wild specimens can live up to fifteen years.

Difference Between Yellow Angelfish  and Lemonpeel Angelfish

The Yellow Angelfish is difficult to distinguish from its relative, the Lemonpeel Angelfish (Centropyge flavissima), since both the species of pygmy angelfish are rather “lemon” colored.

However, the yellow angels have no blue markings around the eyes and on the gill covers, as well as tiny blue markings around the eyes that adorn the edges of its fins, as seen on lemonpeel angels.

Other than that, yellow angelfish males have a more angular rear portion of their dorsal fin and tail fin.

What Are the Features of Yellow Angelfish?


Most of this angelfish’s colors are brilliant yellow, with the exception of some coloration variants. It has a somewhat “lemon” appearance, and males may have a little black on their faces, but both genders are yellow overall.

In addition, the male yellow angelfish has a darker anal fin and dorsal fin in some cases. When fully grown, it will have more pointed dorsal and anal fins, as well as a dark area behind the eye with yellow dots.

Another variety comes from the Coral Sea region of the Great Barrier Reef. This species has a black horizontal line on the very top back of its dorsal fin, as well as a black saddle occasionally.

Length & Weight

The average length of a yellow angelfish is 4.5 inches and they can weigh anything from 0.04 to 1 pound (.18 to .45 kg).

Is Yellow Angelfish Hardy?

The Yellow Angelfish is a moderately hardy aquarium fish that may be kept by an intermediate aquarium keeper. They will adapt to captivity if there are adequate natural algae, and suitable tankmates are supplied.

Yellow Angelfish Availability

Yellow angels are available in some stores and almost always online, with prices ranging from low to moderate.

< 2 inches43.99$
2 – 3 inches$49.99
3 – 4 inches$61.99

How to Care for Yellow Angelfish?

a. Water Requirements

1. Water change

The yellow angelfish is a grazing fish that requires frequent water changes and attention as a result of the amount of food it consumes.

Therefore, you should perform a 10 to 15% biweekly water change or a 20 percent monthly water change.

Also, to maintain excellent water quality, you may put in an aquarium filter that will assist eliminate ammonia, nitrites, and nitrates caused by the fish’s waste and uneaten food.

2. pH Level

Considering their natural habitat, these angels prefer a pH level of 8.0 to 8.4. You can use a pH test kit to help you keep track of the pH levels in your aquarium.

3. Water Temperature

According to their habitat, the yellow angelfish prefers a water temperature of 72 to 82 degrees Fahrenheit.

If your environment is not warm enough, you may use an aquarium heater to help maintain the ideal water temperature for your yellow angelfish.

Additionally, to avoid temperature fluctuations and keep up with the required water temperature, you may need to put a thermometer in the aquarium.

b. Tank Setup

1. Size

The minimum aquarium size for a juvenile yellow angelfish is 30 gallons. However, an adult will be more likely to survive in a tank of 55 gallons or more.

A good rule of thumb is ten gallons of water for each inch of fish. For example, if you have a yellow angelfish that is four inches long, then the minimum tank size for that fish would be 40 gallons.

2. Tank Decoration

Yellow Angelfish thrive in an aquarium that is set up to mimic their natural reef habitat.

The ideal aquarium environment for your angels should have 1.5 to 2 pounds of live rock per gallon, as this will provide the algae food they need to survive.

In addition, you must provide them with deep grottos and caverns where they may seek safety when they are in danger.

Moreover, live plants will add aesthetic value to your aquarium and also provide oxygenation and help with toxins removal.

Yellow Angelfish Compatibility

Yellow angelfish are peaceable fish, but they can become severely aggressive towards other tankmates when the tank is too small.

Also, they can be aggressive towards one another while competing for food, so keep it away from other algae-eaters. In addition, avoid smaller aggressive fish like dottybacks unless the tank is very large.

Larger peaceful fish are fine but keep more violent or predatory fish away from them.

Other dwarf angelfish may be combined only in tanks with a capacity of more than 150 gallons, and only if there are plenty of hiding places and enough territory for all.

Yellow Angelfish Diet 

Yellow Angelfish is omnivorous but leans toward herbivorous because it spends a lot of time grazing detritus and microalgae off of the live rock. In the wild, they can be found eating algae, small crustaceans, and worms.

In captivity, they will eat flake and pellet food. Also, live foods like brine shrimp (Artemia) would make them grow in size and strength since it includes proteins that will give them a nice color.

However, the most essential component of their diet, on the other hand, is its herbivorous content, since a yellow angelfish that doesn’t receive enough green food will be blind in a few months.

Therefore, to complement their algae grazing, they should be fed algae 2 to 3 times a day.

Yellow Angelfish Breeding

In captivity, yellow angelfish are extremely difficult to breed. They will also attack and eat their own eggs. As a result, the breeding pair must be moved to another aquarium so that the fry may survive.

However, in the wild, many males court numerous females. When the male and female come into contact with each other, they form a circle and the male will grunt to attract the female’s attention.

Then, the male swims up and leans its body toward the female. If the female is ready to reproduce, she will approach him and they both will rise together.

When their swimming gathering is finished, the male will nuzzle the belly of the female as a sign of affection.

After that, the male opens and closes his mouth while moving his pectoral fins. They then belly to belly join together to release eggs that have been fertilized.

After mating, the male usually spends a few minutes with the female. Then he goes to find his next mate.

Possible Diseases and Prevention

White Spot Disease

Yellow Angelfish, like other saltwater angelfish, are vulnerable to any illness that affects fish in captivity, especially, when housed incorrectly or with inappropriate tankmates.

The most common disease affecting marine tangs and angelfish is white spot disease, also known as Marine Ich, Saltwater Ich, and Crypt. The primary symptoms of Marine Ick are constant scratching that results in a large number of white spots.

Marine velvet

The velvet disease, Oodinium ocellatum (also known as Amyloodinium ocellatum or Branchiophilus Maris), is a flagellate that affects fish.

Marine velvet is a condition in which your fish’s scales have been clamped and joined by the marine environment, resulting in symptoms such as:

  • Peppery covering and clamped fins
  • Respiratory distress (breathing rapidly as seen by frequent or rapid gill movements)
  • Eye cloudiness
  • Possible weight loss


Parasites on marine fish kept in aquariums with live rock or in a reef tank are quite tough to get rid of.

Copper and formalin solutions, as well as quinine-based medicines, are not recommended since they are harmful to other marine species.

However, metronidazole and other antimicrobials are effective and safe in the treatment of a variety of protozoan and anaerobic bacterial infections.

Also, you should raise the temperature of your tank gradually for external parasites, aiming for at least 82° F (28° C) to prevent the parasite from completing its lifecycle.

Is Yellow Angelfish Reef Safe?

They are not recommended for reef aquariums. They have been observed nipping at clam mantles, sea anemones, large polypod stony corals, and soft corals.


What Do You Feed Yellow Angelfish?

Yellow Angelfish will consume a wide variety of foods. In the wild, their diet consists of algae, crustaceans, and small fish.

In captivity, they should be offered a diet based on marine algae and live foods like brine shrimps.

How Big Do Yellow Angelfish Get?

Yellow Angelfish grow to be about 4.5 long.

What Is the Lifespan of a Yellow Angelfish?

The lifespan of a Yellow Angelfish is about 10 years in captivity.

Do Yellow Angelfish Have Teeth?

Yellow Angelfish have teeth that they use to eat algae and small crustaceans.

Do Yellow Angelfish Change Color?

Yellow Angelfish can change color depending on their mood and the environment around them.

What Is the Minimum Tank Size for Yellow Angelfish?

The minimum tank size for adult Yellow Angelfish is about 55 gallons. However, juveniles will be comfortable in a 30-gallon tank.

What Is the Temperature Range for Yellow Angelfish Tanks?

The ideal temperature range for Yellow Angelfish tanks is between 72 and 82 degrees Fahrenheit.

What Is the pH Range for Yellow Angelfish Tanks?

The ideal pH range for Yellow Angelfish tanks is between 8.0 and 8.4.

How Often Should You Feed Yellow Angelfish?

Yellow Angelfish should be fed 2-3 times per day.

Last Words

Yellow angelfish are beautiful fish that can be a great addition to any saltwater aquarium. Just be sure to give them the proper care and attention they need to thrive.

If you are thinking of getting a Yellow Angelfish for your aquarium, make sure to do your research and provide them with the best possible environment.

Remember, these are sensitive creatures that need pristine water conditions and a proper diet to stay healthy and happy.

With the right care, your Yellow Angelfish will be a beautiful and lively addition to your aquarium for years to come!

We hope you enjoyed this article and found it helpful. If you have any questions or would like to share your own experiences, feel free to leave a comment below!