Discus vs Rainbow Trout
Symphysodon discus との比較 Oncorhynchus mykiss
Taxonomy & Classification
| 属性 | Discus | Rainbow Trout |
|---|---|---|
| 学名 | Symphysodon discus | Oncorhynchus mykiss |
| 目 | Cichliformes | Salmoniformes |
| 科 | Cichlidae | Salmonidae |
| Conservation Status | Least Concern | Least Concern |
Physical Traits
| 属性 | Discus | Rainbow Trout |
|---|---|---|
| 最大体長 | 20.0 cm | 120.0 cm |
| 最大体重 | 0.25 kg | 25.4 kg |
| 体色 | 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. | Steel-blue to olive-green back with a vivid iridescent pink-to-crimson lateral stripe, flanks densely speckled with small black spots across body and fins. |
Habitat & Environment
| 属性 | Discus | Rainbow Trout |
|---|---|---|
| 水質タイプ | Freshwater | Freshwater & Saltwater |
| 生息水深 | — | 0-200m |
| 分布域 | 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 … | Native to cold rivers and coastal waters of western North America from Alaska to northern Mexico. Anadromous steelhead run migrate between Pacific coastal rivers and … |
| 生息地 | 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. … | Native to cool, clear rivers and streams of western North America; introduced worldwide. Prefers cold, oxygen-rich water (10-18°C) over gravel and cobble at 0-500m elevation. … |
Aquarium Suitability
| 属性 | Discus | Rainbow Trout |
|---|---|---|
| 最小水槽サイズ | 250 L | — |
| 水温 | 26-30 | — |
| pH 範囲 | 5.0-7.0 | — |
| 飼育難易度 | Difficult | — |
| 気性 | Peaceful | — |
釣り情報
| 属性 | Discus | Rainbow Trout |
|---|---|---|
| ゲームフィッシュ | いいえ | はい |
| ファイト評価 | — | 6/10 |
| 世界記録 | — | — |
| 水銀含有量 | — | — |
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.
Rainbow Trout
Delicate, mildly sweet flesh ranging from white to pink; low to moderate fat. Excellent pan-fried with butter, baked, or smoked; a top-tier freshwater table fish.
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.
Rainbow Trout
The rainbow trout is native to cold-water tributaries of the Pacific Ocean in Asia and North America. Widely introduced worldwide, it is prized by anglers for its acrobatic leaps and beautiful coloration.