🧬 Biological Classification (Kingdom to Species)Betta splendens
Kingdom
Animalia
Phylum
Chordata
Class
Actinopteri
Order
Anabantiformes
Family
Osphronemidae
Genus
Betta
Species
Betta splendens
Siamese fighting fish (Betta splendens)📸 Photo

Photo: Henryk Niestrój · CC BY 4.0 · Wikimedia Commons Source

Actinopteri🥩 Carnivore

Siamese fighting fish

Betta splendens (Siamese fighting fish · ベタ・スプレンデンス)

🛡️ Conservation Status (IUCN Red List)VU (Vulnerable)
DDData Deficient
LCLeast Concern
NTNear Threatened
VUVulnerable
ENEndangered
CRCritically End.
EWExtinct in Wild
EXExtinct
Geological Era
Extant
Diet
Carnivore
Length · Height
7.5cm · No data
Mass · Top Speed
No data · No data
Habitat & Fossil Locality
Rice paddies, standing waters, thickly overgrown ponds, and slow-moving waters of the Mekong River basin, tolerating low-oxygen conditions

💡 Everyday Comparisons for Size, Mass & Speed

  • 💡 Its average length of 7.5 cm is slightly shorter than the long side of a credit card (8.56 cm) (Comparison).
  • 💡 According to ADW, it is kept as a pet and was also used in staged fights between males in the East. FishBase advises against keeping males in very small containers.

Reference standards: coach bus ~12 m, mid-size car ~4.9 m, compact car ~1 t, basketball hoop 3.05 m, credit card 8.56 cm.

#베타#Betta splendens

📖 1. Overview

The Siamese fighting fish is a small freshwater fish native to the Mekong River basin in Southeast Asia, famous as an aquarium fish for its fighting males and bright colors. It can also breathe air.

🦴 2. Anatomy & Morphology

Its body is streamlined to cut smoothly through water, and its scales overlap like roof tiles and are covered in mucus. It breathes air and comes in varieties of many colors.

🔍 3. Ecology & Behavior

In the wild, it eats insects that fall into the water, zooplankton, and mosquito larvae. Males build nests out of air bubbles and fight other males over territory.

🇰🇷 4. Connection to Korea

No direct record connecting this species to Korea has been found.

📚 Sources & References

Recorded dimensions are widely cited representative estimates from public literature and may vary by study or specimen.

🔗 Related & Comparable Species

DATA & LICENSE

📚 Data & Image Sources and Licenses

Full Citation Principles →
① Photos: Wikimedia Commons

Every photo's author and license is verified via the Wikimedia Commons API (PD, CC0, CC BY, CC BY-SA) and displayed with full attribution and source links.

② Summaries: Wikipedia

Wikipedia summary excerpts on detail pages are licensed under CC BY-SA 4.0 and linked to the original article.

③ Measurements & IUCN Status

Length, mass, and speed are representative estimates from published literature. Conservation status follows IUCN Red List categories (iucnredlist.org).

④ Silhouettes & Scale Diagrams

Silhouettes on the size comparison stage use open-licensed PhyloPic illustrations and custom body diagrams drawn at an exact 1m = 1m scale.

Expert review: looking for reviewers · compiled by quoting official (English) sources

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