Discus vs Greater Amberjack
Symphysodon discus compared with Seriola dumerili
Taxonomy & Classification
| Attribute | Discus | Greater Amberjack |
|---|---|---|
| Scientific Name | Symphysodon discus | Seriola dumerili |
| Order | Cichliformes | Carangiformes |
| Family | Cichlidae | Carangidae |
| Conservation Status | Least Concern | Least Concern |
Physical Traits
| Attribute | Discus | Greater Amberjack |
|---|---|---|
| Max Length | 20.0 cm | 200.0 cm |
| Max Weight | 0.25 kg | 80.6 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. | Olive-green to bluish back with a wide amber to golden-yellow mid-lateral stripe running from eye to tail; silvery-white belly; a dark diagonal stripe extends from snout through the eye to the dorsal fin. |
Habitat & Environment
| Attribute | Discus | Greater Amberjack |
|---|---|---|
| Water Type | Freshwater | Saltwater |
| Depth Range | — | 1-385m |
| 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 … | Circumglobal in tropical and subtropical waters including the Atlantic, Mediterranean Sea, Indian Ocean, and Pacific. Commonly found around deepwater reefs, rocky outcrops, and offshore oil … |
| 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. … | Pelagic, coral reefs |
Aquarium Suitability
| Attribute | Discus | Greater Amberjack |
|---|---|---|
| Min Tank Size | 250 L | — |
| Temperature | 26-30 | — |
| pH Range | 5.0-7.0 | — |
| Care Level | Difficult | — |
| Temperament | Peaceful | — |
Fishing Information
| Attribute | Discus | Greater Amberjack |
|---|---|---|
| Game Fish | No | Yes |
| Fight Rating | — | 9/10 |
| 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.
Greater Amberjack
Firm, rich flesh with a moderately strong flavor; can carry parasites in tropical waters, requiring thorough cooking. Good grilled or baked; related to the highly prized Japanese hamachi.
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.
Greater Amberjack
The greater amberjack is the largest of the jacks, known for brutal head-shaking fights and powerful dives toward structure. Found near reefs, wrecks, and offshore platforms in tropical and subtropical waters worldwide.