This fish breeds between May and June. During this period, the male has white wattles (pustules) on the it ad. The female lays enormous quantities of small eggs (100 to 300,000) that cling to the vegetation of the territory of the males. Spawning is noisy and causes splashes.

The caribbean sergeant major is a tropical fish associated with coral reefs and rocky tropical areas of the western Atlantic Ocean. This small schooling fish has a morphologically very close cousin throughout the Indo-Pacific region: A. sexfasciatus.

Named the pale surgeonfish due to its pastel blue-gray color, this fish is a common resident of the coral areas of the Indo-Pacific. It is regularly observed in schools of hundreds of individuals not far from the reefs.

The chocolate surgeonfish, A. pyroferus, gets its name from its color gradient. In addition to this morphological characteristic, this typically solitary species in adulthood is known for its lively and bold nature.

The convict surgeonfish are common inhabitants of the lagoons and seagrass beds of the Indo-Pacific region. Fond of filamentous algae, these herbivorous fish are often found in mangroves and estuaries, at the edge of freshwater. They are easily recognizable by their vertical black stripes.

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.

Unlike its famous cousin from the movie Finding Nemo, this tomato clownfish is reddish with a darker body. It has a single white vertical stripe just behind the eye. Young individuals have one to two additional stripes which they lose as they grow.

This fish lives in a sea anemone. When two individuals move into the anemone, the dominant grows faster and becomes female. The pair become aggressive towards other clownfish, but they tolerate the presence of some invertebrates (shrimp, crab).

The European eel, A. anguilla, is a freshwater fish native to Europe. Abundant until the 1980s, it has been severely affected by overfishing. It is considered a critically endangered species in France and several neighboring countries.

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.

It is found between 30 and 200 meters deep. It lives near cavities where it takes refuge in case of danger. The male has large pectoral fins and is surrounded by a harem of a dozen females. If it dies, the dominant female becomes a male (protogynous hermaphroditism).

It must be kept in a good sized aquarium with efficient filtration, as it is used to chewing it food and scattering it. It is sometimes aggressive toward other species. It breeds easily in captivity. There are several varieties.

The blacktip reef shark is viviparous and gestation lasts about a year. The litter varies from 2 to 4 juveniles, measuring about 40 centimeters. After giving birth, the female abandons it juveniles. If disturbed, this small sized shark, may attack. It gets into the Mediterranean more and more often via the Suez Canal.

The bicolor angelfish is a tropical fish found throughout much of the Indo-Pacific region. It is easily recognizable by its bicolor pattern, bright yellow on top, followed by blue. This omnivore frequents lagoons and protected reef slopes, either as a pair or in small scattered groups.

The coral beauty angelfish is always born female. As they grow, individuals change their sex to become male, a phenomenon known as protogynous sequential hermaphroditism. The difference between male and female is therefore visible. The adult male is larger and has an anal fin ending in a point.

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 blacklip butterflyfish has a broad geographical distribution that spans from the Red Sea to the Galápagos Islands. Typically, it is found alone or in pairs in shallow coral reefs. It feeds on polyps of soft corals, particularly leather corals and broccoli corals.