Arapaima vs Neon Tetra

Arapaima gigas 与之比较 Paracheirodon innesi

Taxonomy & Classification

属性	Arapaima	Neon Tetra
学名	Arapaima gigas	Paracheirodon innesi
目	Osteoglossiformes	Characiformes
科	Arapaimidae	Characidae
Conservation Status	Data Deficient	Least Concern

Physical Traits

属性	Arapaima	Neon Tetra
最大体长	450.0 cm	3.0 cm
最大体重	200.0 kg	0.001 kg
体色	Dark olive-gray to grayish-black back with large scales that become vivid red-orange with black borders on the posterior flanks; belly pale cream; caudal fin reddish and rounded.	Electric iridescent blue-green stripe from eye to adipose fin; vivid red stripe from mid-body to tail base; back olive-brown; belly silvery-white; all fins transparent and colorless.

Habitat & Environment

属性	Arapaima	Neon Tetra
水质类型	Freshwater	Freshwater
栖息水深	—	—
地理分布	Restricted to the Amazon River basin in Brazil, Peru, Guyana, and Bolivia. Inhabits flooded várzea lakes, oxbows, and large river channels; surfaces frequently to breathe …	Native to blackwater tributaries of the upper Amazon River basin in Colombia, Peru, and Brazil. Inhabits slow, acidic, tannin-stained streams and flooded forest areas in …
栖息地	Floodplain lakes (várzea) and large river channels of the Amazon basin. Slow-moving, shallow, warm freshwater (26-30°C). An obligate air-breather; rises to surface to gulp air. …	Warm, soft-water rivers and streams of the upper Amazon and Perú in South America. Prefers slow-moving blackwater with dense vegetation (pH 5.5-7.5, 20-26°C). Dense schooling …

Aquarium Suitability

属性	Arapaima	Neon Tetra
最小水箱尺寸	—	40 L
水温	—	20-26
pH 范围	—	6.0-7.0
饲养难度	—	Easy
性情	—	Peaceful

钓鱼信息

属性	Arapaima	Neon Tetra
游钓鱼种	是	否
搏鱼评级	10/10	—
世界纪录	—	—
汞含量	—	—

Cuisine & Edibility

Arapaima

Large, firm white fillets with a mild, clean flavor and low fat; historically a staple protein in Amazonian communities. Often salted and dried; sustainable harvest is tightly regulated.

Neon Tetra

Not consumed — ornamental aquarium species kept for its vivid iridescent stripe and peaceful schooling behavior.

Species Overview

Arapaima

The arapaima is one of the largest freshwater fish in the world, reaching up to 4.5 meters. An obligate air-breather, it must surface every 10-20 minutes to gulp air. Its tongue is bony and used to crush prey against the roof of its mouth.

Neon Tetra

The neon tetra is one of the most popular freshwater aquarium fish, known for its iridescent blue and red horizontal stripes. Native to blackwater streams of the Amazon basin, it thrives in schools of six or more.