Discus vs Tarpon
Symphysodon discus compared with Megalops atlanticus
Taxonomy & Classification
| Attribute | Discus | Tarpon |
|---|---|---|
| Scientific Name | Symphysodon discus | Megalops atlanticus |
| Order | Cichliformes | Elopiformes |
| Family | Cichlidae | Megalopidae |
| Conservation Status | Least Concern | Vulnerable |
Physical Traits
| Attribute | Discus | Tarpon |
|---|---|---|
| Max Length | 20.0 cm | 250.0 cm |
| Max Weight | 0.25 kg | 161.0 kg |
| Color | Deep-bodied disc shape with vibrant turquoise-blue wavy horizontal lines over a reddish-brown to orange-brown base; fins edged in vivid blue with red striping; wild forms show 9 dark vertical bars. | Brilliant chrome-silver flanks with large, plate-like reflective scales producing a mirror-like sheen; back is dark blue-green; fins clear to dusky with elongated dorsal ray. |
Habitat & Environment
| Attribute | Discus | Tarpon |
|---|---|---|
| Water Type | Freshwater | Freshwater & Saltwater |
| Depth Range | — | 0-40m |
| Geographic Range | Restricted to the central Amazon River basin in Brazil, particularly around the confluence of the Rio Negro and Rio Solimões. Prefers warm, soft, highly acidic … | Western and eastern Atlantic from Virginia south through the Caribbean Sea, Gulf of Mexico, and along the South American coast to Brazil; also West Africa. … |
| Habitat | Warm, blackwater rivers of the Amazon basin, particularly the Rio Negro and tributaries. Prefers soft, acidic water (pH 4.5-6.5, 26-31°C) with driftwood and minimal current. … | Coral reefs, estuaries |
Aquarium Suitability
| Attribute | Discus | Tarpon |
|---|---|---|
| Min Tank Size | 250 L | — |
| Temperature | 26-30 | — |
| pH Range | 5.0-7.0 | — |
| Care Level | Difficult | — |
| Temperament | Peaceful | — |
Fishing Information
| Attribute | Discus | Tarpon |
|---|---|---|
| Game Fish | No | Yes |
| Fight Rating | — | 10/10 |
| World Record | — | — |
| Mercury Level | — | — |
Cuisine & Edibility
Discus
Not consumed — a prized ornamental aquarium fish known as the 'king of the aquarium' for its disc-shaped body and brilliant colors.
Tarpon
Bony flesh with a strong, somewhat coarse texture; rarely eaten in modern sport fishing. Primarily catch-and-release; not commonly consumed due to bones and Vulnerable status.
Species Overview
Discus
The discus is often called the 'King of the Aquarium' for its disc-shaped body and stunning color patterns. Native to the Amazon floodplains, it requires warm, soft, acidic water and feeds its fry with a mucus secretion from its skin.
Tarpon
The tarpon is often called the 'Silver King' for its large mirror-like scales and acrobatic leaps. This ancient species has existed for over 100 million years and can breathe air using a modified swim bladder.