European Sturgeon vs Neon Tetra

Acipenser sturio comparado com Paracheirodon innesi

Taxonomy & Classification

Atributo	European Sturgeon	Neon Tetra
Nome Científico	Acipenser sturio	Paracheirodon innesi
Ordem	Perciformes	Characiformes
Família	Acipenseridae	Characidae
Conservation Status	Critically Endangered	Least Concern

Physical Traits

Atributo	European Sturgeon	Neon Tetra
Comprimento Máximo	600,0 cm	3,0 cm
Peso Máximo	400,0 kg	0,001 kg
Cor	Gray-brown to dark brownish-black back with 5 rows of bony scutes that are yellowish-white; sides pale grayish-brown to whitish; belly creamy-white; thick armored body with a shark-like heterocercal tail.	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

Atributo	European Sturgeon	Neon Tetra
Tipo de Água	Freshwater & Saltwater	Freshwater
Faixa de Profundidade	4-93m	—
Distribuição Geográfica	Historically ranged across European coastal waters from the North Sea and Baltic to the Mediterranean and Black seas, spawning in major rivers like the Rhine, …	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 …
Habitat	Neritic, estuaries	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

Atributo	European Sturgeon	Neon Tetra
Tamanho Mínimo do Aquário	—	40 L
Temperatura	—	20-26
Faixa de pH	—	6.0-7.0
Nível de Cuidado	—	Easy
Temperamento	—	Peaceful

Cuisine & Edibility

European Sturgeon

Critically Endangered — consumption is illegal throughout its range. Historically prized for its delicate flesh and black caviar; now one of the world's most threatened fish species.

Neon Tetra

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

Species Overview

European Sturgeon

The European sturgeon is a critically endangered anadromous fish that can live over 100 years. Once abundant in European rivers, it is now restricted to a small population in the Gironde estuary. Its eggs are harvested as beluga-grade caviar.

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.