Discus vs Zander
Symphysodon discus so sánh với Sander lucioperca
Taxonomy & Classification
| Thuộc tính | Discus | Zander |
|---|---|---|
| Tên khoa học | Symphysodon discus | Sander lucioperca |
| Bộ | Cichliformes | Perciformes |
| Họ | Cichlidae | Percidae |
| Conservation Status | Least Concern | Least Concern |
Physical Traits
| Thuộc tính | Discus | Zander |
|---|---|---|
| Chiều dài tối đa | 20,0 cm | 130,0 cm |
| Cân nặng tối đa | 0,25 kg | 20,0 kg |
| Màu sắc | 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. | Greenish-gray to olive body with 8–10 dark olive-brown vertical bars or saddle blotches; flanks finely mottled; belly whitish; first dorsal fin with dark-spotted rays; large glassy eyes adapted for low light. |
Habitat & Environment
| Thuộc tính | Discus | Zander |
|---|---|---|
| Loại nước | Freshwater | Brackish |
| Phạm vi độ sâu | — | 2-30m |
| Phân bố địa lý | 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 river systems and large lakes of northern and central Europe and western Asia, including the Volga, Danube, Rhine, and Baltic Sea drainages. Tolerates … |
| Môi trường sống | 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. … | Estuaries |
Aquarium Suitability
| Thuộc tính | Discus | Zander |
|---|---|---|
| Kích thước bể tối thiểu | 250 L | — |
| Nhiệt độ | 26-30 | — |
| Phạm vi pH | 5.0-7.0 | — |
| Mức độ chăm sóc | Difficult | — |
| Tính cách | Peaceful | — |
Thông tin câu cá
| Thuộc tính | Discus | Zander |
|---|---|---|
| Cá thể thao | Không | Có |
| Xếp hạng chiến đấu | — | 6/10 |
| Kỷ lục thế giới | — | — |
| Hàm lượng thủy ngân | — | — |
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.
Zander
Lean, firm white flesh with a delicate, mild flavor and nearly no fat; boneless fillets are easy to work with. The most prized freshwater eating fish in Central and Eastern Europe.
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.
Zander
The zander is the European equivalent of the walleye and one of the most prized freshwater predators in Europe. Its excellent low-light vision makes it a crepuscular hunter. Its delicate white flesh is considered among the finest of freshwater fish.