Volcanic cliff

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.

The body of this fish is almost completely covered with small spines. It can swell with water and triple in size to impress predators. Its flesh is toxic. In the aquarium, it is very voracious and grows rapidly. It can damage, with a bite, the decors, pipes, diffusers ...

This fish is very shy and it is easy to approach it when diving. it eyes are hidden by transverse black lines. It has a black eyespot on the dorsal fin, which attracts the attention of predators to parts of its body where there are no vital organs.

The long-spine porcupinefish is a pufferfish found in the majority of tropical and subtropical marine areas around the globe. Juveniles can be found in small groups. As they age, this species becomes more solitary. Specialized in hunting mollusks and small crustaceans, this fish exhibits a seemingly clumsy swimming behavior.

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.

The name 'unicornfish' refers to the protrusions found in adult individuals. These unicornfish inhabit the tropical waters of the Indian and Pacific Oceans. Throughout their growth, these fish continuously change colors and patterns. They usually live in small groups, but large schools can form in areas with strong ocean currents.

This large unicorn fish is a common inhabitant of lagoons and reefs with strong currents. Primarily diurnal, it feeds on brown algae like sargassum. It can be encountered in small groups or solitary.

Easily recognizable by its shape and blue color, this triggerfish naturally lives in groups in the turbulent waters near coral reefs. During the breeding season, males and females pair up to build a nest. They fiercely defend this small territory against other fish species and, more broadly, against any intrusion, even human.

The yellow boxfish is recognizable by its characteristic trapezoidal shape and its round mouth protruding like a beak. Its two large round eyes are prominent on the top of its head. Adults typically display a bright yellow color, covered with scattered black spots. However, there are variations in color such as ochre and blue, sometimes with white spots or black-ringed white spots, especially in the Red Sea. Juveniles are blue to greenish, always with the same pattern.

The juveniles of this species have very long fins. They often let themselves drift with the currents in all positions, so they look like dead leaves. Adults sometimes gather in huge schools.

The Emperor Angelfish is found from the Red Sea to the Great Barrier Reef. Juveniles hide under reef overhangs or in holes in outer lagoons, while adults prefer caves in coral-rich areas. These fish feed on sponges and form pairs for reproduction.