Flowerhorn Fish

Last updated: November 13, 2021
Verified by: AZ Animals Staff

The Flowerhorn fish is an artificial species; it does not exist naturally



Flowerhorn Fish Scientific Classification

Kingdom
Animalia
Phylum
Chordata
Class
Actinopterygii
Order
Cichliformes
Family
Cichlidae

Read our Complete Guide to Classification of Animals.

Flowerhorn Fish Conservation Status

Flowerhorn Fish Locations

Flowerhorn Fish Locations

Flowerhorn Fish Facts

Prey
Shrimp, worms, insects, and plant matter
Name Of Young
Larvae and fry
Group Behavior
  • Solitary
Fun Fact
The Flowerhorn fish is an artificial species; it does not exist naturally
Estimated Population Size
Unknown
Biggest Threat
None
Most Distinctive Feature
The bulbous skin on the forehead
Other Name(s)
Flowerhorn Cichlid
Gestation Period
1 - 2 weeks
Average Spawn Size
Up to 1,000 at a time
Habitat
Freshwater
Predators
Larger fish
Diet
Omnivore
Type
Ray-finned fish
Common Name
Flowerhorn Fish
Number Of Species
1
Location
Worldwide

Flowerhorn Fish Physical Characteristics

Color
  • Red
  • Blue
  • Black
  • White
  • Green
  • Orange
Skin Type
Scales
Lifespan
Up to 12 years
Weight
About 0.5kg (1lb)
Length
Up to 40cm (16in)
Age of Sexual Maturity
Up to a year
Age of Weaning
A few days

Flowerhorn Fish Images

Click through all of our Flowerhorn Fish images in the gallery.

Beautiful Flowerhorn cichlid fish in water tank with blue background.
Red Flowerhorn swimming in a fish tank.
Blue Flowerhorn Cichlid in a beautiful aquarium.
Flowerhorn cichlid fish isolated on black background.
Baby flowerhorn fish in water tank.
Flowerhorn cichlid, isolated on white.

View all of the Flowerhorn Fish images!



The Flowerhorn fish, also known as the Flowerhorn cichlid, is an artificial creation of human breeders, thought to originate from Southeast Asia in the 1990s.

This unique freshwater hybrid was produced from crosses between several different types of cichlids, including blood parrots, red devils, and three spot cichlids (or the trimac). Today there are more than a dozen different varieties of the Flowerhorn, but the Zhen Zhu, Golden Monkey, and Kamfa are among the most popular, each one varying by its colors, markings, and shape. While purely human creation, some owners have discarded them back into the wild, where they can aggressively out-compete native fish (though many of the males are sterile). For this reason, it is considered to be an invasive species in many countries.

3 Incredible Flowerhorn Fish Facts!

  • Flowerhorn fish are sometimes considered to be signs of fortune, luck, health, and prosperity by collectors.
  • Flowerhorn fish will change colors throughout their lives. They will gradually gain their full colors upon reaching maturity, and then the colors slowly fade as they begin to age. Certain plant-based foods (like those containing xanthophyll) can affect its colors as well. Drastic color changes, especially the sudden appearance of pale or dark markings and spots, could signify stress, poor environmental conditions, or even disease.
  • Some strains have a white to dark line of spots running across the side of the body. These markings are called a pearling or a flowerline.

Flowerhorn Fish Scientific Name

Because it was artificially created by humans, the Flowerhorn is not recognized as a distinct species. It was bred from several other hybrid cichlids, a family of freshwater tropical fish distributed throughout the world. Cichlids are very popular with breeders and aquarium owners for their incredible diversity of bright, garish colors and complex body markings.

Flowerhorn Fish Appearance

The Flowerhorn cichlid is a medium-sized fish, normally measuring anywhere up to 16 inches in size. It is characterized by a rounded, symmetrical appearance with a long dorsal fin running along the back, a fairly long anal fin, and a fan-shaped tail fin. These fish also have two sets of teeth: the normal set in the mouth and a secondary set in the throat (known as pharyngeal teeth) that help to grind up food.

By far the most prominent characteristic, however, is the large protruding bump on the forehead (known as the nuchal hump), composed of a bulbous soft tissue of fat or gel. The purpose of this bump isn’t fully understood, but it may have something to do with sex recognition in many cichlid species. Depending on the strain, this animal can come in many different colors; usually a white base with orange, red, or black markings running sideways along the body. Blue and green are common colors as well. Males are fairly easy to recognize. They tend to be larger than females with more vivid colors and a bigger forehead bump.

Blue Flowerhorn Cichlid in a beautiful aquarium.
Blue Flowerhorn Cichlid in a beautiful aquarium.

Flowerhorn Fish Behavior

Although bred in captivity, the Flowerhorn fish is a wild tropical species with very particular needs. It will probably require a large tank with plenty of space to swim around in; some experts claim it will need at least 70 gallons, but it might be necessary to go as large as 100 gallons for a single fish. The water should be consistently maintained at a temperature of 80 to 86 degrees Fahrenheit and a pH of 7.0 to 8.0. A standard canister filter with a moderate flow rate will keep the tank clean and healthy.

The tank should be filled with a soft substrate and only a few minor decorations. The Flowerhorn has a tendency to dig around in the dirt and root up plants. A bit of driftwood and a few medium-sized rocks should be sufficient to properly simulate a “natural” environment.

The Flowerhorn appears to be a curious fish that likes to roam around and investigate its surroundings. There are even anecdotal reports that the Flowerhorn fish likes to interact with its owner and can recognize a person’s face. However, depending on the breed, they can be a bit territorial and do not often tolerate the presence of another fish in the tank.

Flowerhorns are usually quite happy on their own, and pairing them with another fish can result in one attacking the other. If you do plan on getting a tank mate, then you might want to try a medium-sized fish like a pleco, an Oscar fish, or a silver Arowana that also tolerates similar environmental conditions. Do not pair them with smaller fish that lack the ability to stand their ground against the Flowerhorn. In order to ensure that there’s plenty of room for two fish, you will probably need a tank of around 150 gallons.

Flowerhorn Fish Habitat

The Flowerhorn fish does not exist naturally in the wild. It was gradually developed by breeders in Malaysia, Thailand, and Taiwan, each one crossing it with a new strain or species to produce entirely novel types. Since the 1990s, it has become very popular with aquarium hobbyists throughout East Asia. It also gained a small but eager following in Europe and the United States. However, because of irresponsible disposal, this fish sometimes appears in natural habitats around Southeast Asia, displacing native species. A few countries may actually ban their import.

Flowerhorn Fish Predators and Threats

As a popular aquarium fish, the Flowerhorn faces no serious threats in captivity. However, the quality of their care will have a significant impact on their lifespan. A poorly cared for fish will be more likely to develop health conditions. One of the most common problems is called hole-in-the-head disease. This self-explanatory condition is often caused by poor water quality and the presence of carbon. Moreover, white spots around the gills and body could be a sign of a freshwater parasite called ich. Knowing the signs is the first step toward treating your fish.

What eats the flowerhorn fish?

In captivity, the Flowerhorn obviously has no natural predators. But In the wild, it can be preyed upon by larger fish.

What does the flowerhorn fish eat?

The Flowerhorn fish can be described best as an opportunistic omnivore. It is not particularly picky about what kinds of foods it eats. In captivity, plant-based foods in any form (including pellets) should compose part of its diet. It particularly enjoys peas, lettuce, and spinach. This should be supplemented with a protein-rich diet consisting of worms, shrimp, crickets, grasshoppers, and other insects. Owners will need to feed them around two or three times a day. Flowerhorns are voracious eaters and will pretty much consume almost anything you feed them, so try to limit their caloric intake a little to prevent weight gain.

Flowerhorn Fish Reproduction and Life Cycle

The Flowerhorn fish has a reputation for being a little finicky to breed in captivity. Males can be aggressive during the courtship process and may sometimes attack the female. Even if they do mate with the female, some of them are completely infertile due to the hybridization process. If you plan to breed Flowerhorns, then reproduction should ideally occur in a separate tank from the main one. Some breeders like to place a divider between the pair with enough water flow to help hormones pass through. Females will lay up to a thousand eggs per month, whether or not a male is actually present.

Once they’ve properly mated, the male (and sometimes the female as well) will stand guard over the eggs until they’re ready to hatch about one or two weeks later. Paternal investment usually ends when the baby fry starts to swim, usually a few days after hatch. By the time they’ve consumed all the yolk from their eggs, owners will need to feed the baby fry up to 10 times per day for the first few months of their lives. At three or four months of age, the baby fry reaches a few inches large and is usually sold at that point. Some of the larger breeds of Flowerhorns can survive up to 12 years in captivity, providing the owner with plenty of enjoyment and entertainment.

Flowerhorn Fish Population

The number of Flowerhorn fish worldwide is unknown. Since this isn’t a natural species, the IUCN Red List (or any other conservation organization) hasn’t assigned it a conservation status.

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Flowerhorn Fish FAQs (Frequently Asked Questions) 

Are Flowerhorn fishes carnivores, herbivores, or omnivores?

The Flowerhorn is an omnivore. It needs a well-balanced diet consisting of plants and meat.

What do Flowerhorn fish eat?

In captivity, the Flowerhorn should be fed a plant-based diet, which can come in any form, including pellets. This should be supplemented with worms, shrimp, crickets, grasshoppers, and other insects.

What is special about Flowerhorn fish?

The Flowerhorn fish is an artificially bred species, created by people for its beauty and appearance. The very first Flowerhorn was developed from the blood parrot cichlid, which itself is a hybrid between a few Central American cichlid species. These original stocks are generally known as the Louhan. It was then bred with several other types of cichlids to produce various types of Flowerhorns. The Kamfa was developed directly from the Louhan; it is characterized by a square body, a particularly prominent forehead bump, white or yellow eyes, and a black flowering pattern along the side. The Zhen Zhu has red protruding eyes, a more rounded tail, and yellow or tan colors with an iridescent flowering pattern. The Golden Monkey, characterized by vivid colors and black lines down the middle, is an original Louhan-based fish; as a result, it’s quite rare and expensive.

What is the cost of flowerhorn fish?

The price for a common Flowerhorn strain could be as little as $30; the cost of care will probably be more expensive than the fish itself. However, some people will pay a very high price for particularly rare and valuable strains such as the Golden Monkey, sometimes hundreds or even a thousand dollars. The Flowerhorn hobby can be just as serious and hardcore as any dog breeding.

Can Flowerhorn fish live with other fish?

The Flowerhorn is generally known for being aggressive and territorial. They might not accept other fish in their tanks, even members of the same species. If you plan to house multiple fish, then you should try to keep them separate from each other. However, this can be difficult, because the Flowerhorn does like to roam and explore.

Are Flowerhorn fish good pets?

That depends on what you want from your pet. They can be a little finicky and territorial with some very specific care requirements, but they’re also quite beautiful and curious with an excellent lifespan. They were specially bred to appeal to hobbyists.

Where can I buy Flowerhorn fish?

If you’re not picky about the type of Flowerhorn, then one can be acquired from a local pet store for a very reasonable price. However, some strains can only be found at an exotic fish store.

Sources
  1. Aquarium Source, Available here: https://www.aquariumsource.com/flowerhorn-cichlid/
  2. Vivo Fish, Available here: https://www.vivofish.com/flowerhorn-cichlid/
  3. Springer Link, Available here: https://link.springer.com/article/10.1007/s10228-018-0614-y

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