Arapaima vs Corydoras
Arapaima gigas مقارنةً بـ Corydoras paleatus
Taxonomy & Classification
| السمة | Arapaima | Corydoras |
|---|---|---|
| الاسم العلمي | Arapaima gigas | Corydoras paleatus |
| الرتبة | Osteoglossiformes | Siluriformes |
| الفصيلة | Arapaimidae | Callichthyidae |
| Conservation Status | Data Deficient | Least Concern |
Physical Traits
| السمة | Arapaima | Corydoras |
|---|---|---|
| الطول الأقصى | 450,0 cm | 7,0 cm |
| الوزن الأقصى | 200,0 kg | 0,005 kg |
| اللون | Dark olive-gray to grayish-black back with large scales that become vivid red-orange with black borders on the posterior flanks; belly pale cream; caudal fin reddish and rounded. | Pale olive-gray to greenish body with irregular dark olive to black marbled blotches and spots; a broad dark blotch at the dorsal fin base; belly is cream to white; fins spotted or barred. |
Habitat & Environment
| السمة | Arapaima | Corydoras |
|---|---|---|
| نوع الماء | Freshwater | Freshwater |
| نطاق العمق | — | — |
| النطاق الجغرافي | Restricted to the Amazon River basin in Brazil, Peru, Guyana, and Bolivia. Inhabits flooded várzea lakes, oxbows, and large river channels; surfaces frequently to breathe … | Native to the La Plata River system and coastal rivers of southeastern Brazil, Uruguay, and northeastern Argentina. Inhabits shallow streams, flooded meadows, and sandy-bottomed lagoons … |
| الموطن | Floodplain lakes (várzea) and large river channels of the Amazon basin. Slow-moving, shallow, warm freshwater (26-30°C). An obligate air-breather; rises to surface to gulp air. … | Rivers and streams of the Río de la Plata basin in South America (Brazil, Argentina, Uruguay). Inhabits clear-water streams over sandy and muddy bottoms. Active … |
Aquarium Suitability
| السمة | Arapaima | Corydoras |
|---|---|---|
| الحد الأدنى لحجم الحوض | — | 40 L |
| درجة الحرارة | — | 22-26 |
| نطاق الرقم الهيدروجيني | — | 6.0-8.0 |
| مستوى الرعاية | — | Easy |
| المزاج | — | Peaceful |
معلومات الصيد
| السمة | Arapaima | Corydoras |
|---|---|---|
| أسماك الصيد الرياضي | نعم | لا |
| تصنيف المقاومة | 10/10 | — |
| الرقم القياسي العالمي | — | — |
| مستوى الزئبق | — | — |
Cuisine & Edibility
Arapaima
Large, firm white fillets with a mild, clean flavor and low fat; historically a staple protein in Amazonian communities. Often salted and dried; sustainable harvest is tightly regulated.
Corydoras
Not consumed — a small ornamental bottom-dwelling catfish beloved for its peaceful temperament and role as a substrate scavenger in community aquariums.
Species Overview
Arapaima
The arapaima is one of the largest freshwater fish in the world, reaching up to 4.5 meters. An obligate air-breather, it must surface every 10-20 minutes to gulp air. Its tongue is bony and used to crush prey against the roof of its mouth.
Corydoras
The peppered corydoras is a peaceful bottom-dwelling catfish native to South American rivers. It uses its barbels to sift through substrate for food and should be kept in groups of six or more. It can gulp atmospheric air in low-oxygen conditions.