
Encyclopedias of species

Endangered fish
Many species are currently vulnerable. Out of the 10,500 freshwater fish species whose conservation status has been assessed by the IUCN, 30% are considered endangered.
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redtail notho
Cyprinodontidae
redtail notho
Cyprinodontidae
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Betta rubra
Osphronemidae
Betta rubra
Osphronemidae
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pez lápiz
Lebiasinidae
pez lápiz
Lebiasinidae
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rhône streber
Percidae
rhône streber
Percidae
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lake kurumoi rainbowfish
Melanotaeniidae
lake kurumoi rainbowfish
Melanotaeniidae
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Nematolebias papilliferus
Cyprinodontidae
Nematolebias papilliferus
Cyprinodontidae
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Hypancistrus zebra
Loricariidae
Hypancistrus zebra
Loricariidae
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sarasin's goby
Gobiidae
sarasin's goby
Gobiidae
The giants of the oceans
Nowadays, the large aquatic species are becoming rare and threatened due to overfishing. Many of these species have slow growth rates and have been heavily targeted over the past centuries, with a peak in the 1990s.
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tarpon
Megalopidae
tarpon
Megalopidae
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Huso huso
Acipenseridae
Huso huso
Acipenseridae
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roughtail stingray
Dasyatidae
roughtail stingray
Dasyatidae
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tiger shark
Carcharhinidae
tiger shark
Carcharhinidae
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spiny butterfly ray
Gymnuridae
spiny butterfly ray
Gymnuridae
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scalloped hammerhead
Carcharhinidae
scalloped hammerhead
Carcharhinidae
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oceanic manta ray
Mobulidae
oceanic manta ray
Mobulidae
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sturgeon
Acipenseridae
sturgeon
Acipenseridae
Jewels of the reefs
Coral reefs showcase the most extravagant marine fauna. All sizes, shapes, colors, and patterns come together in this joyful parade. Reefs are essential for marine balance.
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Triggerfishes
The bullies of the reefs
Triggerfishes
The bullies of the reefs
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Surgeonfish
The Scalpel Specialists
Surgeonfish
The Scalpel Specialists
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Clownfish
The residents of the anemones
Clownfish
The residents of the anemones
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seahorses
Seahorses
seahorses
Seahorses
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breams and basses
breams and basses
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scorpionfishes
Scorpionfishes
scorpionfishes
Scorpionfishes
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The fish of the Amazon
The Amazon, the largest freshwater basin in the world, is characterized by the diversity of its habitats and numerous biodiversity hotspots. In 2024, over 2,500 fish species were recorded there, but research and exploration efforts are still ongoing.
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amazon puffer
Tetraodontidae
amazon puffer
Tetraodontidae
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Pseudoplatystoma tigrinum
Pimelodidae
Pseudoplatystoma tigrinum
Pimelodidae
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Prionobrama filigera
Characidae
Prionobrama filigera
Characidae
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ornate tetra
Characidae
ornate tetra
Characidae
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Lonchogenys ilisha
Acestrorhynchidae
Lonchogenys ilisha
Acestrorhynchidae
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marbled hatchetfish
Gasteropelecidae
marbled hatchetfish
Gasteropelecidae
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Apistogramma pulchra
Cichlidae
Apistogramma pulchra
Cichlidae
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Corydoras arcuatus
Callichthyidae
Corydoras arcuatus
Callichthyidae
The fish Europeans
Not always known to the general public, the fauna that inhabits our lakes, rivers, and streams is very diverse. The arrival of invasive species and the drying up of wetlands threaten nearly a quarter of Europe's freshwater fish species.
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european bitterling
Cyprinidae
european bitterling
Cyprinidae
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sturgeon
Acipenseridae
sturgeon
Acipenseridae
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Gymnocephalus cernua
Percidae
Gymnocephalus cernua
Percidae
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pike-perch
Percidae
pike-perch
Percidae
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brown trout
Salmonidae
brown trout
Salmonidae
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rhône streber
Percidae
rhône streber
Percidae
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Aphanius danfordii
Cyprinodontidae
Aphanius danfordii
Cyprinodontidae
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european pilchard
Clupeidae
european pilchard
Clupeidae
of the Americas
Present on Earth before the dinosaurs, snakes have inspired numerous myths and beliefs, from the depths of the Amazon to the Bible.
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green anaconda
Boidae
green anaconda
Boidae
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rainbow snake
Colubridae
rainbow snake
Colubridae
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red-bellied mudsnake
Colubridae
red-bellied mudsnake
Colubridae
The crustaceans
With their warrior-like appearance, crustaceans are exceptional cleaners and scavengers. There are now over 50,000 species with forms as diverse as daphnia, crabs, or mantis shrimp.
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Calcinus laevimanus
Diogenidae
Calcinus laevimanus
Diogenidae
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Pacifastacus leniusculus
Astacidae
Pacifastacus leniusculus
Astacidae
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Geosesarma dennerle
Sesarmidae
Geosesarma dennerle
Sesarmidae
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Ranina ranina
Raninidae
Ranina ranina
Raninidae
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Percnon planissimum
Plagusiidae
Percnon planissimum
Plagusiidae
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Alpheus randalli
Alpheidae
Alpheus randalli
Alpheidae
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Dardanus deformis
Diogenidae
Dardanus deformis
Diogenidae
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Dardanus guttatus
Diogenidae
Dardanus guttatus
Diogenidae
The mollusks
From snails to squids, there are now 50,000 recorded
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Octopus cyanea
Octopodidae
Octopus cyanea
Octopodidae
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Bolinus brandaris
Muricidae
Bolinus brandaris
Muricidae
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Murex pecten
Muricidae
Murex pecten
Muricidae
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Mauritia mauritiana
Cypraeidae
Mauritia mauritiana
Cypraeidae
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Mauritia arabica
Cypraeidae
Mauritia arabica
Cypraeidae
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Thaumoctopus mimicus
Octopodidae
Thaumoctopus mimicus
Octopodidae
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blue dragon / blue sea slug
Glaucidae
blue dragon / blue sea slug
Glaucidae
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Rochia nilotica
tegulidae
Rochia nilotica
tegulidae

The fish of the Mediterranean
There are over 700 fish species recorded in the Mediterranean Sea. Many species, especially in the wrasse family, only inhabit these waters, which are now heavily impacted by human activities.
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marbled spinefoot
Siganidae
marbled spinefoot
Siganidae
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cardinal fish
Apogonidae
cardinal fish
Apogonidae
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garpike
Belonidae
garpike
Belonidae
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black sea silverside
Atherinidae
black sea silverside
Atherinidae
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annular seabream
Sparidae
annular seabream
Sparidae
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blotched picarel
Sparidae
blotched picarel
Sparidae
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pelagic stingray
Dasyatidae
pelagic stingray
Dasyatidae
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ocellated wrasse
Labridae
ocellated wrasse
Labridae
The fish of the Canary Islands
Located off the coast of Morocco, the Canary Islands host unique marine biodiversity, blending species from the Mediterranean Sea with the first subtropical animals of the Atlantic Ocean. Here, you can find flute fish, several species of damselfish, and pufferfish, among others.
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pilotfish
Carangidae
pilotfish
Carangidae
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azores chromis
Pomacentridae
azores chromis
Pomacentridae
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lesser spotted dogfish
Scyliorhinidae
lesser spotted dogfish
Scyliorhinidae
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red scorpionfish
Scorpaenidae
red scorpionfish
Scorpaenidae
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black scorpionfish
Scorpaenidae
black scorpionfish
Scorpaenidae
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red mullet
Mullidae
red mullet
Mullidae
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gilthead seabream
Sparidae
gilthead seabream
Sparidae
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wide-eyed flounder
Bothidae
wide-eyed flounder
Bothidae
The fish of the Caribbean
The Caribbean Sea is home to the world's second-largest coral reef, the Mesoamerican Barrier Reef. This coral barrier stretches for about 1,000 km along the Caribbean coast of Mexico, Belize, Guatemala, and Honduras. It houses 10% of the world's coral reefs and over 1,400 species of fish and marine mammals.
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caesar grunt
Haemulidae
caesar grunt
Haemulidae
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west atlantic trumpetfish
Aulostomidae
west atlantic trumpetfish
Aulostomidae
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white grunt
Haemulidae
white grunt
Haemulidae
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longsnout seahorse
Syngnathidae
longsnout seahorse
Syngnathidae
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ringneck blenny
Blenniidae
ringneck blenny
Blenniidae
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blackbarred squirrelfish
Holocentridae
blackbarred squirrelfish
Holocentridae
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threespot damselfish
Pomacentridae
threespot damselfish
Pomacentridae
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crevalle jack
Carangidae
crevalle jack
Carangidae
The fish of Réunion and the western Indian Ocean
A volcanic island situated west of the Indian Ocean, Réunion has a discontinuous belt of lagoons formed by coral reefs. In the lagoons protected by coral barriers, aquatic fauna is easily accessible to divers and bathers. Unfortunately, these areas are often degraded by human activities.
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blue-lined wrasse
Labridae
blue-lined wrasse
Labridae
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queen coris
Labridae
queen coris
Labridae
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oowderblue surgeonfish
Acanthuridae
oowderblue surgeonfish
Acanthuridae
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painted frogfish
Antennariidae
painted frogfish
Antennariidae
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blacklip butterflyfish
Chaetodontidae
blacklip butterflyfish
Chaetodontidae
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twotone tang
Acanthuridae
twotone tang
Acanthuridae
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harlequin filefish
Monacanthidae
harlequin filefish
Monacanthidae
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japanese pineapple fish
Monocentridae
japanese pineapple fish
Monocentridae

The stars of freshwater
There are countless species available to populate your aquariums, but how do you choose? Behavior, size, longevity, reproduction... discover which ones will adapt best to your project and desires.
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dwarf cichlids
The small tropical territorial fish
dwarf cichlids
The small tropical territorial fish
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livebearers
Mosquito eaters
livebearers
Mosquito eaters
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Loaches
Loaches
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freshwater dwarf shrimps
The tiny jewels of tropical rivers
freshwater dwarf shrimps
The tiny jewels of tropical rivers
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catfish
catfish
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Icons of the aquarium hobby
Fighters, guppies, angelfish, discus... these fish have fascinated generations of enthusiasts. However, it's very important to know their maintenance requirements well, allowing them to have a long and enjoyable life by your side.
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Brichardi cichlid
Cichlidae
Brichardi cichlid
Cichlidae
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zebra danio
Danionidae
zebra danio
Danionidae
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freshwater angelfish
Cichlidae
freshwater angelfish
Cichlidae
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green swordtail
Poeciliidae
green swordtail
Poeciliidae
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Hemigrammus ocellifer
Characidae
Hemigrammus ocellifer
Characidae
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orange clownfish
Pomacentridae
orange clownfish
Pomacentridae
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clown anemonefish
Pomacentridae
clown anemonefish
Pomacentridae
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Paracheirodon innesi
Characidae
Paracheirodon innesi
Characidae