Great Hammerhead Shark vs Neon Tetra
Sphyrna mokarran compared with Paracheirodon innesi
Taxonomy & Classification
| Attribute | Great Hammerhead Shark | Neon Tetra |
|---|---|---|
| Scientific Name | Sphyrna mokarran | Paracheirodon innesi |
| Order | Carcharhiniformes | Characiformes |
| Family | Sphyrnidae | Characidae |
| Conservation Status | Critically Endangered | Least Concern |
Physical Traits
| Attribute | Great Hammerhead Shark | Neon Tetra |
|---|---|---|
| Max Length | 610.0 cm | 3.0 cm |
| Max Weight | 580.0 kg | 0.001 kg |
| Color | 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
| Attribute | Great Hammerhead Shark | Neon Tetra |
|---|---|---|
| Water Type | Saltwater | Freshwater |
| Depth Range | 1-300m | — |
| Geographic Range | 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
| Attribute | Great Hammerhead Shark | Neon Tetra |
|---|---|---|
| Min Tank Size | — | 40 L |
| Temperature | — | 20-26 |
| pH Range | — | 6.0-7.0 |
| Care Level | — | Easy |
| Temperament | — | Peaceful |
Cuisine & Edibility
Great Hammerhead Shark
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
Great Hammerhead Shark
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.