Nile Tilapia vs Zebra Danio

Oreochromis niloticus との比較 Danio rerio

Taxonomy & Classification

属性	Nile Tilapia	Zebra Danio
学名	Oreochromis niloticus	Danio rerio
目	Cichliformes	Cypriniformes
科	Cichlidae	Danionidae
Conservation Status	Least Concern	Least Concern

Physical Traits

属性	Nile Tilapia	Zebra Danio
最大体長	60.0 cm	5.0 cm
最大体重	4.3 kg	0.001 kg
体色	Grayish-green to olive body with 7–12 regular dark vertical bars on the flanks; caudal fin shows vertical dark stripes; belly pale gray; breeding males develop a reddish hue on the throat and fins.	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	Nile Tilapia	Zebra Danio
水質タイプ	Brackish	Freshwater
生息水深	0-20m	—
分布域	Native to the Nile River system, Lake Victoria, and other East African Rift Valley lakes. Introduced globally for aquaculture; now established in tropical and subtropical …	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 …
生息地	Originally from the Nile River; now globally distributed through aquaculture. Warm, shallow freshwater lakes, ponds, and rivers (20-35°C). Highly adaptable; tolerates brackish water and oxygen-poor …	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	Nile Tilapia	Zebra Danio
最小水槽サイズ	—	40 L
水温	—	18-24
pH 範囲	—	6.0-8.0
飼育難易度	—	Easy
気性	—	Peaceful

Cuisine & Edibility

Nile Tilapia

Mild, slightly sweet white flesh with low fat and a firm texture; absorbs marinades and spices well. One of the world's most farmed fish; excellent grilled, fried, or baked.

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

Nile Tilapia

The Nile tilapia is the most widely farmed fish species in the world, cultivated in over 120 countries. Originally from Africa, it is a hardy, fast-growing mouth-brooder that thrives in a wide range of environmental conditions.

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.