The Siamese fighting fish (Betta splendens), renowned as the "most beautiful fighting fish" among ornamental fish for its gorgeous colors and unique fin shapes, showcases the following charms:
Color and Morphological Characteristics
- Diverse Body Colors: Exhibits vibrant hues like red, purple, blue, green, and white. Some individuals feature special colorations such as red-blue blends, black-gold combinations, or fluorescent tones.
- Male Traits: The caudal, anal, and dorsal fins of males are broad and flowing. When spread, they resemble a fan or a full moon (most prominent in the half-moon variety).
- Fighting Posture: During displays of dominance, the fish fully extends its fins, intensifies its body color, and creates a striking dynamic visual appeal.
Recommended Popular Varieties
- Half-Moon Betta: The caudal fin spreads to 180 degrees, resembling a full moon, earning it the title "noble of fighting fish."
- Crown Tail Betta: The fin membranes degenerate into needle-like structures, shaped like a crown or lion's mane.
- Veiltail Betta: The caudal fin flows like a horse's tail, making it ideal for novice keepers.
- Giant Betta: Grows to 7–9 cm, offering stronger visual impact.
Ecological Traits
- Native to Thailand, with a typical body length of 5–8 cm (exceptional individuals reach 10 cm).
- Requires soft, slightly acidic water at 22–24°C. As anabantoid fish, it can breathe air directly through a labyrinth organ.
- Males are highly aggressive and should be kept individually to maintain optimal condition.
Fun Fact: Historically used in betting games, the Siamese fighting fish has become a beloved pet for aquarists worldwide. Some rare strains command high prices due to their scarcity.