El flower horn fish is one of the species de peces The most striking species in the aquarium world, known for its large protuberance on its head and its vibrant coloration. Despite its hybrid origin, it is appreciated both for its beauty and for the belief in some Asian cultures that it brings good luck.
Origin and history of the Flower Horn Fish
The Flower Horn fish is a artificial hybrid which does not exist in nature, but is the product of crosses between several species of South American cichlids. Its origin dates back to the 1990s in Southeast Asia, specifically in Malaysia and Taiwan, where breeders developed it by selecting specific characteristics such as size, coloration and frontal hump.
The main progenitors of this fish are believed to be:
- Amphilophus trimaculatus
- Amphilophus citrinellus
- Old synspilum
Physical characteristics of the Flower Horn Fish
This fish stands out for its cephalic hump, also known as “kok,” which develops with age and can vary in size depending on genetics and care. Its body is robust and elongated, with colors ranging from deep red to blue and pearl tones.
- Size: It can reach up to 40 cm in length.
- Life expectancy: 10 to 12 years with proper care.
- sexual dimorphism: Males tend to be larger, have more intense colors and a more pronounced hump than females.
Behavior and compatibility
The Flower Horn is an extremely fish territorial and aggressive. It is not advisable to keep it in community aquariums, as it may attack other fish. However, some aquarists have managed to keep it with robust and similarly sized species, such as:
- Astronotus ocelllatus. (Oscar)
- Herichthys cyanoguttatus (Texas cichlid)
- Hypostomus plecostomus (Bottom cleaner fish)

Aquarium requirements
Given its size and aggressiveness, the minimum recommended space for a Flower Horn fish is 270 liters, although the ideal is to have a tank of at least 500 liters if you want to keep more than one specimen. Knowing the Proper care of the Flower Horn fish It is essential for your well-being.
- Temperature: 25-30 °C
- pH: 7.0-8.0
- Water hardness: 5-20°dH
- Filtration: A high capacity system is recommended to keep the water clean.
Flower Horn Fish Feeding
The Flower Horn's diet should be varied and high quality. It is recommended:
- Specific pellets for large cichlids.
- Live foods such as bloodworms and brine shrimp.
- Pieces of fish and shellfish (avoiding giving too much to prevent digestive problems).

Reproduction of the Flower Horn Fish
The Flower Horn is an oviparous fish and its reproduction can be difficult due to the aggressiveness of the males. To reproduce them, it is recommended:
- Separate the pair in a divided tank until they become accustomed to each other's presence.
- Provide a flat surface where the female can lay eggs.
- Observe whether the male does not attack the female after fertilization.
Diseases and prevention
Flowerhorns can suffer from a variety of diseases, including:
- Hexamitiasis: It causes holes in the head and is treated with antiparasitic drugs.
- Bacteriosis: It can cause skin ulcers, which can be treated with specific antibiotics.
- Constipation: It occurs due to an inadequate diet. It is recommended to eat vegetables and foods rich in fiber.
Knowledge about them facilitates prevention and appropriate treatment.
The Flower Horn Fish is undoubtedly one of the most fascinating and popular species in aquarium keeping. Its impressive appearance and behavior make it the center of attention in any aquarium. However, it is essential to know its characteristics. needs to ensure their well-being and longevity.