With an adult size that can exceed 70 cm, the yellowfin surgeonfish is one of the largest fish in its family. This species is found from the coasts of East Africa to the Galápagos Islands. It mainly feeds on diatoms, algae that make up plankton.

Commonly known as the porkfish, this species is native to the western tropical Atlantic Ocean. During the day, this fish seeks refuge alone or in small groups in crevices while actively hunting mollusks and crustaceans once night falls. Juveniles participate in cleaning sessions for larger fish.

The arapaima, a freshwater giant reaching sizes of up to 4.5 meters, plays a vital role as a dominant predator in the Amazon basin. Equipped with thick and resilient scales that provide effective protection against predators, this iconic freshwater fish is threatened by overfishing. Juveniles breathe through their gills while adults often use their swim bladder to gulp air at the surface.

The tete sea catfish is listed from Mexico to Peru in the coastal waters of the Pacific coast. It is characterized by large eyes useful for hunting its prey (crustaceans, fish) and escaping from its predators. These territorial fish are among the few species of catfish adapted to marine life.

The eyes of this fish are masked by a colored band and has an eye spot on the back of it body that draws the attention of predators to body parts away from vital organs. It is appreciated by aquarists, but it must be given the large preys, preferably alive ...

The blue-green Chromis is a fish that lives in large schools above dense coral areas. At the slightest alarm, this swift fish takes refuge in the colonies of branching corals. The Blue-green Chromis is common throughout the Indo-Pacific region.

Ctenochaetus striatus, elegantly named the "striated surgeonfish", is found in the tropical waters of the Indo-Pacific, particularly in the lagoons of La Réunion and Mauritius. In Tahiti, during the full moon, this fish displays a natural spectacle: large schools form, and after a brief moment of stillness, each individual breaks away to release eggs or sperm.

This butterflyfish is easily recognized by its elongated snout, which is useful for capturing aquatic microorganisms among corals. It also uses it to peck at the feet of echinoderms, the pedicellariae of sea urchins, and the tentacles of marine worms.

The magnificent sea anemone is found in a large part of the Indo-Pacific region. With individuals reaching nearly one meter in diameter, this species is one of the most impressive anemones in the animal kingdom. In many areas, clownfish, immune to their venom, live in symbiosis with these animals, protected by their tentacles.

The bluestreak cleaner wrasse feeds exclusively by parasitically cleaning larger fish and turtles. In the reefs, it coordinates a cleaning station, typically near branching corals. Particularly active at the beginning of the day, these small cleaner wrasses clean the gills and mouths of many fish species.

This fish lives camouflaged among the gorgonians. it watches its prey from a promontory and swims quickly toward them to catch them before returning to it observation post. During the breeding season, the male performs a courtship display to attract the attention of a female.

It also feeds off of feces of other animals. To protect itself, it has sharp bony plates along its sides. It emits sounds reminiscent of grunts. It easily acclimate to the aquarium, but because of its large size, it can become cumbersome.

Like many catfish species, it hunts at night. The female is larger than the male and lays huge amounts of eggs (8 million eggs per kilo). Because of its size and its diet, you should not keep it in a private aquarium.

The large pectoral fins of this fish serve as a fish net to capture prey. Its color (alternating dark and light bands) indicate to predators that it is poisonous: there are poison glands in the skin covering its spines. It can cause serious or fatal accidents.