Plecostomus vs Requin baleine

Hypostomus plecostomus comparé à Rhincodon typus

Taxonomy & Classification

Attribut	Plecostomus	Requin baleine
Nom scientifique	Hypostomus plecostomus	Rhincodon typus
Ordre	Siluriformes	Orectolobiformes
Famille	Loricariidae	Rhincodontidae
Conservation Status	Least Concern	Endangered

Physical Traits

Attribut	Plecostomus	Requin baleine
Longueur maximale	50,0 cm	1800,0 cm
Poids maximum	1,0 kg	21500,0 kg
Couleur	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 gray to blue-gray back covered with a distinctive checkerboard grid of pale white or cream spots and transverse stripes; belly white; the unique spot pattern is unique to each individual.

Habitat & Environment

Attribut	Plecostomus	Requin baleine
Type d'eau	Brackish	Saltwater
Plage de profondeur	—	0-1928m
Aire de répartition	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; …	Pantropical in open oceanic and coastal waters between 30°N and 35°S. Aggregates seasonally at feeding sites including Ningaloo Reef in Western Australia, the Gulf of …
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 …	Neritic, coral reefs

Aquarium Suitability

Attribut	Plecostomus	Requin baleine
Taille minimale de l'aquarium	280 L	—
Température	22-28	—
Plage de pH	6.5-8.0	—
Niveau d'entretien	Easy	—
Tempérament	Peaceful	—

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.

Requin baleine

Endangered species — consumption is strongly discouraged and illegal in many countries. Historically consumed in parts of Asia; now internationally protected under CITES Appendix II.

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.

Requin baleine

The whale shark is the largest living fish species, reaching lengths of up to 18 meters. Despite its enormous size, it is a gentle filter feeder that consumes plankton, fish eggs, and small fish by swimming with its wide mouth open.