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Betta Fish
VulnerableAquarium Suitable

Betta Fish

Betta splendens

Also known as: Siamese Fighting Fish, Betta

The Betta Fish is one of the most popular aquarium fish in the world, prized for its vibrant colors and flowing fins. Males are known for their territorial aggression toward other males, which led to their use in fish fighting in Southeast Asia.

Max Size

3 inches (7.5 cm)

Lifespan

3-5 years

Depth

0-1 meter

Water Type

freshwater

Scientific Classification

Class
Actinopterygii
Order
Anabantiformes
Family
Osphronemidae
Species
Betta splendens

Habitat & Distribution

Habitat

Rice paddiesShallow pondsSlow-moving streams

Distribution

ThailandCambodiaVietnamLaos

Behavior

Male bettas are highly territorial and will fight other males. They display by flaring their gills and spreading their fins. Despite their aggression toward other bettas, they can be peaceful with other species in community tanks with proper setup.

Reproduction

Males build bubble nests at the water surface. After an elaborate courtship dance, the female releases eggs which the male fertilizes and places in the nest. Males guard the eggs until they hatch in 24-48 hours.

Aquarium Care Guide

Minimum Tank Size

5 gallons

Care Level

Easy

Temperament

Aggressive

Temperature

76°F - 82°F

Diet

Carnivore - pellets, frozen/live foods

Conservation Status

VulnerablePopulation trend: decreasing

Main Threats

  • Habitat loss
  • Pollution
  • Over-collection

🎉 Fun Facts

  • Bettas can breathe air using a special organ called a labyrinth
  • Males build bubble nests to protect eggs
  • They can recognize their owners and learn simple tricks
  • Wild bettas are much less colorful than captive-bred varieties
  • They can jump several inches out of the water

Data Sources

Last updated: 1/15/2024