Discus vs Zebra Danio

Symphysodon discus 与之比较 Danio rerio

Taxonomy & Classification

属性	Discus	Zebra Danio
学名	Symphysodon discus	Danio rerio
目	Cichliformes	Cypriniformes
科	Cichlidae	Danionidae
Conservation Status	Least Concern	Least Concern

Physical Traits

属性	Discus	Zebra Danio
最大体长	20.0 cm	5.0 cm
最大体重	0.25 kg	0.001 kg
体色	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.	Silver to pale gold body with five continuous horizontal royal-blue stripes running from gill to tail tip, including through the fins; belly silvery-white; fins clear with blue-gold striping.

Habitat & Environment

属性	Discus	Zebra Danio
水质类型	Freshwater	Freshwater
栖息水深	—	—
地理分布	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 …	Native to the Ganges and Brahmaputra river basins of Bangladesh, India, Nepal, and Myanmar. Inhabits fast-flowing hill streams, rice paddies, and shallow ponds across the …
栖息地	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. …	Fast-flowing, clear mountain streams of the Ganges-Brahmaputra region, India and Bangladesh. Clean, well-oxygenated, shallow water with sandy and gravelly substrate (18-26°C). Lab model organism.

Aquarium Suitability

属性	Discus	Zebra Danio
最小水箱尺寸	250 L	40 L
水温	26-30	18-24
pH 范围	5.0-7.0	6.0-8.0
饲养难度	Difficult	Easy
性情	Peaceful	Peaceful

Cuisine & Edibility

Discus

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

Zebra Danio

Not consumed — a hardy ornamental aquarium fish notable for its horizontal blue-silver stripes and active schooling behavior; also a widely used laboratory model organism.

Species Overview

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.

Zebra Danio

The zebrafish is a small cyprinid native to South Asia's freshwater streams. Its distinctive blue-and-gold horizontal stripes and hardy nature make it a popular aquarium fish. It is also the most widely used vertebrate model organism in genetic research.