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Plecostomus vs Wels Catfish

Hypostomus plecostomus comparado com Silurus glanis

Taxonomy & Classification

Atributo Plecostomus Wels Catfish
Nome Científico Hypostomus plecostomus Silurus glanis
Ordem Siluriformes Siluriformes
Família Loricariidae Siluridae
Conservation Status Least Concern Least Concern

Physical Traits

Atributo Plecostomus Wels Catfish
Comprimento Máximo 50,0 cm 500,0 cm
Peso Máximo 1,0 kg 300,0 kg
Cor Dark brown to grayish-black body densely covered with pale yellowish or cream spots and flecks creating a mottled leopard-like pattern; armor-plated scutes visible; belly is pale tan to cream. Dark olive-green to slate-gray back with irregular mottled marbling of darker blotches; flanks grade to olive-yellow; scaleless smooth skin; belly pale cream to yellowish-white; head broad and flat.

Habitat & Environment

Atributo Plecostomus Wels Catfish
Tipo de Água Brackish Brackish
Faixa de Profundidade — 0-30m
Distribuição Geográfica Native to rivers and coastal streams of northeastern South America, from Guyana and Suriname through northern Brazil. Found in rocky river bottoms and estuarine margins; … Native to large river systems and lakes of central and eastern Europe from the Rhine basin east to the Caspian and Aral sea drainages. Introduced …
Habitat Rivers of the Amazon basin, especially the Rio Tapajós and Rio Orinoco. Inhabits clear-water rivers over gravel and rocks; also near submerged wood. Grazes algae … Large rivers, lakes, and reservoirs across Europe and Asia (Volga, Danube, Rhine, Ob). Inhabits deep, slow-moving freshwater with soft substrates. Tolerates turbid water (15-25°C). Highly …

Aquarium Suitability

Atributo Plecostomus Wels Catfish
Tamanho Mínimo do Aquário 280 L —
Temperatura 22-28 —
Faixa de pH 6.5-8.0 —
Nível de Cuidado Easy —
Temperamento Peaceful —

Informações de Pesca

Atributo Plecostomus Wels Catfish
Peixe Esportivo Não Sim
Classificação de Resistência — 9/10
Recorde Mundial — —
Nível de Mercúrio — —

Cuisine & Edibility

Plecostomus

Not consumed — ornamental algae-eating catfish kept as a natural tank cleaner; widely popular in freshwater aquariums for its armored body and bottom-dwelling habits.

Wels Catfish

Fatty, soft flesh with a mild, slightly sweet flavor; quality improves from cold, clean water fish. Popular in Central European cuisines — commonly smoked, fried, or braised with vegetables.

Species Overview

Plecostomus

The common pleco is a large armored catfish native to South America. Often purchased as an algae eater, it can outgrow most home aquariums. Its sucker-like mouth allows it to rasp algae from surfaces and anchor itself in fast-flowing currents.

Wels Catfish

The wels catfish is the largest freshwater fish in Europe, capable of exceeding 5 meters. Found in large rivers and lakes across the continent, it has been documented beaching itself to catch pigeons. It can live over 80 years.

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