Betta vs Discus

Betta splendens との比較 Symphysodon discus

Taxonomy & Classification

属性	Betta	Discus
学名	Betta splendens	Symphysodon discus
目	Anabantiformes	Cichliformes
科	Osphronemidae	Cichlidae
Conservation Status	Vulnerable	Least Concern

Physical Traits

属性	Betta	Discus
最大体長	7.0 cm	20.0 cm
最大体重	0.003 kg	0.25 kg
体色	Highly variable in domesticated strains; wild type is dull brownish-green with iridescent blue-green scale patches; long flowing fins display intense reds, blues, purples, and teals with iridescent sheen.	Deep-bodied disc shape with vibrant turquoise-blue wavy horizontal lines over a reddish-brown to orange-brown base; fins edged in vivid blue with red striping; wild forms show 9 dark vertical bars.

Habitat & Environment

属性	Betta	Discus
水質タイプ	Freshwater	Freshwater
生息水深	—	—
分布域	Native to the Mekong River basin in Thailand, Laos, and Cambodia. Found in shallow rice paddies, irrigation ditches, ponds, and slow-moving lowland streams across the …	Restricted to the central Amazon River basin in Brazil, particularly around the confluence of the Rio Negro and Rio Solimões. Prefers warm, soft, highly acidic …
生息地	Shallow, densely vegetated ponds, rice paddies, and slow streams of Thailand and Southeast Asia. Tolerates oxygen-poor, warm water (24-30°C). Males highly territorial; builds bubble nests …	Warm, blackwater rivers of the Amazon basin, particularly the Rio Negro and tributaries. Prefers soft, acidic water (pH 4.5-6.5, 26-31°C) with driftwood and minimal current. …

Aquarium Suitability

属性	Betta	Discus
最小水槽サイズ	19 L	250 L
水温	24-30	26-30
pH 範囲	6.5-7.5	5.0-7.0
飼育難易度	Easy	Difficult
気性	Aggressive	Peaceful

Cuisine & Edibility

Betta

Not consumed — ornamental aquarium species prized for its flowing fins and vibrant coloration; classified Vulnerable in the wild.

Discus

Not consumed — a prized ornamental aquarium fish known as the 'king of the aquarium' for its disc-shaped body and brilliant colors.

Species Overview

Betta

The Siamese fighting fish is famous for its vibrant colors and flowing fins, developed through centuries of selective breeding. Males are highly territorial and will flare their gill covers at rivals. They possess a labyrinth organ for breathing atmospheric air.

Discus

The discus is often called the 'King of the Aquarium' for its disc-shaped body and stunning color patterns. Native to the Amazon floodplains, it requires warm, soft, acidic water and feeds its fry with a mucus secretion from its skin.