Grand requin marteau vs Neon Tetra

Sphyrna mokarran comparé à Paracheirodon innesi

Taxonomy & Classification

Attribut	Grand requin marteau	Neon Tetra
Nom scientifique	Sphyrna mokarran	Paracheirodon innesi
Ordre	Carcharhiniformes	Characiformes
Famille	Sphyrnidae	Characidae
Conservation Status	Critically Endangered	Least Concern

Physical Traits

Attribut	Grand requin marteau	Neon Tetra
Longueur maximale	610,0 cm	3,0 cm
Poids maximum	580,0 kg	0,001 kg
Couleur	Brownish-gray to olive-gray dorsal surface with a clean countershaded white belly; no distinct patterning; first dorsal fin is tall and strongly falcate; pelvic fin tips dusky.	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

Attribut	Grand requin marteau	Neon Tetra
Type d'eau	Saltwater	Freshwater
Plage de profondeur	1-300m	—
Aire de répartition	Circumtropical in warm coastal and offshore waters of the Atlantic, Indian, and Pacific oceans. Concentrates around coral reefs, continental shelf edges, and deep-water drop-offs; population …	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	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

Attribut	Grand requin marteau	Neon Tetra
Taille minimale de l'aquarium	—	40 L
Température	—	20-26
Plage de pH	—	6.0-7.0
Niveau d'entretien	—	Easy
Tempérament	—	Peaceful

Cuisine & Edibility

Grand requin marteau

Critically Endangered — consumption strongly discouraged. Fins are historically traded but the species faces severe population decline; eating this fish is ecologically irresponsible.

Neon Tetra

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

Species Overview

Grand requin marteau

The great hammerhead is the largest of the nine hammerhead shark species. Its distinctive cephalofoil (hammer-shaped head) houses an array of electroreceptors that allow it to detect stingrays buried beneath the sand.

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.