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Betta Splendens: The figther


Betta splendens, also known as the Siamese fighting fish, is a popular aquarium fish that is highly sought after for its vibrant colors and stunning fins. Originating from Southeast Asia, Betta splendens have been bred for centuries for their striking appearance and aggressive behavior. In this article, we will explore everything you need to know about Betta splendens, including their origin, ideal conditions, feeding, maintenance, breeding, and the different varieties available.

Betta splendens belongs to the family Osphronemidae, which includes other popular aquarium fish such as the gourami and the paradise fish. The Betta genus contains around 73 species, with Betta splendens being the most commonly kept in captivity. The taxonomic classification of Betta splendens is as follows:

Kingdom: Animalia

Phylum: Chordata

Class: Actinopterygii

Order: Perciformes

Family: Osphronemidae

Genus: Betta

Species: Betta splendens

Betta splendens was first described by the French zoologist Charles Tate Regan in 1910.

Physical Characteristics:

Betta splendens are known for their bright colors and flowing fins. Males are typically larger than females and have more vibrant colors and longer fins. They can grow up to 3 inches (7.5 cm) in length and have a lifespan of 2-3 years in captivity. Betta splendens have a labyrinth organ that allows them to breathe air from the surface, so they can survive in oxygen-poor environments such as small, stagnant ponds.


Betta splendens are known for their aggressive behavior towards other male Bettas. They should not be kept in the same tank unless in a breeding pair or with other peaceful species.


Betta splendens are native to the rice paddies, swamps, and slow-moving streams of Southeast Asia, including Thailand, Malaysia, and Indonesia. Originally, Betta splendens were bred for their fighting ability, but over time, they became prized for their beauty and have since become a popular aquarium fish.


Betta splendens require a specific type of aquarium to thrive. A minimum tank size of 5 gallons is recommended, with a larger tank being even better. The tank should be equipped with a filter, heater, and a hiding place such as a plant or cave. It’s important to ensure that the tank has a secure lid to prevent the Betta splendens from jumping out. The water temperature should be between 75 and 80 degrees Fahrenheit (24 and 27 degrees Celsius) and the pH level should be between 6.5 and 7.5. The water should be kept clean with regular water changes of 25% to 50% every week and monthly cleaning of the tank and filter. It’s also important to avoid using harsh chemicals or soaps when cleaning the tank, as these can be harmful to Betta splendens. Overall, providing the proper type of aquarium is crucial for the health and well-being of Betta splendens.


Betta splendens are carnivorous fish and require a protein-rich diet. They can be fed a variety of foods, including pellets, flakes, frozen or live brine shrimp, bloodworms, and daphnia. It’s important not to overfeed Betta splendens, as they can easily become overweight and suffer from health problems.


Maintaining a healthy and clean environment is crucial for the well-being of Betta splendens. It’s recommended to perform regular water changes of 25% to 50% every week and clean the tank and filter monthly. The water temperature and pH level should be monitored regularly, and any changes should be corrected immediately.


Breeding Betta splendens can be challenging, but with proper care and attention, it can be a rewarding experience. Males are known for their aggressive behavior, and it’s important to introduce them to the female in a controlled environment. The male will build a bubble nest, and once the female lays her eggs, the male will fertilize them and move them to the bubble nest. The fry will hatch in about 24 to 36 hours and should be fed small amounts of infusoria or newly hatched brine shrimp.


Betta splendens come in a wide variety of colors and fin types. Some of the most popular varieties include:

  • Veil tail
Veils Betta
  • Crown tail
  • Halfmoon
  • Double tail
  • Plakat
  • Dragon
  • Butterfly
  • Marble

Betta splendens are a fascinating and beautiful fish that can be a great addition to any aquarium. By providing them with proper care, feeding, and maintenance, they can live a long and healthy life. Breeding Betta splendens can be a challenge, but with patience and dedication, it can be a rewarding experience. With so many varieties available, there’s a Betta splendens to suit every taste and preference.