Brook Trout vs Discus

Salvelinus fontinalis 与之比较 Symphysodon discus

Taxonomy & Classification

属性	Brook Trout	Discus
学名	Salvelinus fontinalis	Symphysodon discus
目	Salmoniformes	Cichliformes
科	Salmonidae	Cichlidae
Conservation Status	Least Concern	Least Concern

Physical Traits

属性	Brook Trout	Discus
最大体长	86.0 cm	20.0 cm
最大体重	6.6 kg	0.25 kg
体色	Olive-green back with distinctive worm-like yellowish vermiculations; flanks dotted with red spots ringed by blue halos; lower fins are orange-red with bold black and white leading edges.	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.

Habitat & Environment

属性	Brook Trout	Discus
水质类型	Freshwater & Saltwater	Freshwater
栖息水深	15-27m	—
地理分布	Native to cold Appalachian streams and boreal rivers of eastern Canada and the northeastern United States. Anadromous sea-run populations occur along the Atlantic coast; introduced …	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 …
栖息地	Clear, cold mountain streams and lakes of eastern North America and the Great Lakes basin. Prefers cold, highly oxygenated water (8-18°C) over gravel and cobble. …	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. …

Aquarium Suitability

属性	Brook Trout	Discus
最小水箱尺寸	—	250 L
水温	—	26-30
pH 范围	—	5.0-7.0
饲养难度	—	Difficult
性情	—	Peaceful

钓鱼信息

属性	Brook Trout	Discus
游钓鱼种	是	否
搏鱼评级	5/10	—
世界纪录	—	—
汞含量	—	—

Cuisine & Edibility

Brook Trout

Delicate, sweet flesh with a nutty, mild flavor; low fat and fine texture. One of the most prized freshwater eating fish in North America — best pan-fried simply in butter with herbs.

Discus

Not consumed — a prized ornamental aquarium fish known as the 'king of the aquarium' for its disc-shaped body and brilliant colors.

Species Overview

Brook Trout

The brook trout is actually a char, native to cold, clean streams of eastern North America. Its olive-green body with distinctive worm-like markings (vermiculations) and red spots with blue halos make it one of the most beautiful freshwater fish.

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.