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The Living Encyclopedia
Explore our comprehensive database of reptiles, amphibians, fish, and invertebrates. Discover detailed care guides, morph varieties, and community setups.
fish
Black Ghost Knifefish
Apteronotus albifrons
The black ghost knifefish is a tropical ornamental fish belonging to the ghost knifefish family (Apteronotidae). They originate in freshwater habitats in South America where they range from Venezuela to the Paraguay–Paraná River, including the Amazon Basin. They are popular in aquaria. The fish is all black except for two white rings on its tail, and a white blaze on its nose, which can occasionally extend into a stripe down its back. It moves mainly by undulating a long fin on its underside. It will grow to a length of 45–50 centimetres (18–20 in).
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Clown Knifefish
Chitala chitala
Chitala chitala is a knifefish from Bangladesh, India, Nepal, and Pakistan, found in the Brahmaputra, Indus, Ganges and Mahanadi River basins. It is sometimes known as the Indian featherback or Indian knifefish. In the past, it frequently included several related Chitala species, but these are now regarded as separate species. The main species confused with this species is C. ornata ; a Southeast Asian species seen regularly in the aquarium trade. The true C. chitala is very rare in the aquarium trade.
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African Butterflyfish
Pantodon buchholzi
The freshwater butterflyfish or African butterflyfish is a species of osteoglossiform fish native to freshwater habitats in the Niger and Congo basins of Western and Central Africa. It is the only extant species in the family Pantodontidae. Despite the name, it is not closely related to saltwater butterflyfishes.
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fish
Elephant Nose Fish
Gnathonemus petersii
Peters's elephant-nose fish is an African freshwater elephantfish in the genus Gnathonemus. Other names in English include elephantnose fish, long-nosed elephant fish, and Ubangi mormyrid, after the Ubangi River. The Latin name petersii is probably for the German naturalist Wilhelm Peters. The fish uses electrolocation to find prey, and has the largest brain-to-body oxygen use ratio of all known vertebrates.
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B
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Baby Whale
Brienomyrus brachyistius
Baby Whale (Brienomyrus brachyistius)
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Leaf Fish
Monocirrhus polyacanthus
The Amazon leaffish, or South American leaffish, is a species of fish belonging to the family Polycentridae. It is found in the Amazon basin in Bolivia, Brazil, Colombia, Peru and Venezuela, where it inhabits edges of rivers and lakes, and streams. It is generally a low-density species that lives in slow-moving or essentially stagnant waters in areas with plant debris.
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fish
Archerfish
Toxotidae
The archerfish or Toxotidae are a family of percomorph tropical fish known for their unique predation technique of "shooting down" land-based insects and other small prey with jets of water spit from their specialized mouths. The family is small, consisting of ten species in two genera, Toxotes and Protoxotes. Most archerfish live in freshwater streams, ponds and wetlands, but two or three species are euryhaline, inhabiting both fresh and brackish water habitats such as estuaries and mangroves. They can be found from India, Bangladesh and Sri Lanka, through Southeast Asia, to Melanesia and Northern Australia.
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Mono Sebae
Monodactylus sebae
Monodactylus sebae, the African moony, is a species of moonyfish native to fresh, brackish and marine waters from the eastern Atlantic, ranging from the Canary Islands down to Angola. It inhabits mangrove swamps and estuaries and can occasionally be found in lagoons. This species can reach a length of 25 centimetres (9.8 in) TL though most do not exceed 15 centimetres (5.9 in). It can also be found in the aquarium trade.
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Mono Argentus
Monodactylus argenteus
Monodactylus argenteus is a species of ray-finned fish in the family Monodactylidae, the moonyfishes. Its common name includes silver moonyfish, natal moony, butter bream, and diamondfish. It is native to the western Pacific and the Indian Ocean, including the Persian Gulf, Red Sea, and associated estuaries such as the Mekong Delta.
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Scat Fish
Scatophagidae
Scatophagidae, the scats are a small family of ray-finned fishes in the order Acanthuriformes. They are found in the Indo-Pacific region but one species has been introduced elsewhere.
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Green Scat
Scatophagus argus
Scatophagus argus, the spotted scat, butterfish, mia mia, spotted butterfish or tiger scat, is a species of fish in the scat family Scatophagidae. It occurs in two basic color morphs which are called green scat and ruby or red scat. This fish is generally distributed around the Indo-Pacific region, to Japan, New Guinea, and southeastern Australia. They live in coastal muddy areas, including estuaries, mangroves, harbours, and the lower courses of rivers. They are popular aquarium fish.
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Red Scat
Scatophagus argus var. rubra
Scatophagus argus, the spotted scat, butterfish, mia mia, spotted butterfish or tiger scat, is a species of fish in the scat family Scatophagidae. It occurs in two basic color morphs which are called green scat and ruby or red scat. This fish is generally distributed around the Indo-Pacific region, to Japan, New Guinea, and southeastern Australia. They live in coastal muddy areas, including estuaries, mangroves, harbours, and the lower courses of rivers. They are popular aquarium fish.
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Silver Scat
Selenotoca multifasciata
The spotbanded scat, also known as the striped scat, banded scat, barred scat, butterfish, John Dory, Johnny Dory, old maid, Southern butter-fish or striped butterfish, is a species of ray-finned fish, belonging to the family Scatophagidae, the scats. They are found in the eastern Indian Ocean and southwestern Pacific Ocean.
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Dragon Goby
Gobioides broussonnetii
The violet goby is a species of goby native to marine, fresh and brackish waters near the Atlantic coast of North and South America from South Carolina in the United States, to northern Brazil. It prefers bays, estuaries and river mouths with muddy substrates. It is found in the aquarium trade, where it is often marketed as dragon goby or dragon fish.
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Knight Goby
Stigmatogobius sadanundio
Stigmatogobius sadanundio is a species of goby native to south Asia from India to Indonesia including Sri Lanka and the Andaman Islands. It can be found in mostly fresh waters of estuaries and the tidal zones of rivers. It can also be found in the aquarium trade, where it is often marketed as the knight goby.
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Bumblebee Goby
Brachygobius
Brachygobius is a small genus of gobies. They are popular aquarium fish where a number of species are sold as bumblebee gobies because their colours are similar to those of bumblebees.
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Peacock Gudgeon
Tateurndina ocellicauda
The peacock gudgeon or peacock goby is a tropical freshwater species of fish in the family Eleotridae that is endemic to the eastern part of Papua New Guinea. It can be found in schools hovering over the substrate in rivers and ponds. This species can reach a length of 7.5 cm (3.0 in). It is currently the only known member of its genus.
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Empire Gudgeon
Hypseleotris compressa
Hypseleotris compressa, the empire gudgeon, is a species of Gobiiform fish in the family Eleotridae endemic to Australia and south-central New Guinea.
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Purple Spotted Gudgeon
Mogurnda mogurnda
Mogurnda mogurnda, commonly known as the northern trout gudgeon or northern purple-spotted gudgeon, is a freshwater fish native to northern Australia and New Guinea.
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Upside Down Catfish
Synodontis nigriventris
Synodontis nigriventris, the blotched upside-down catfish, is a species of upside-down catfish native to the Congo Basin of Cameroon, the Democratic Republic of the Congo and the Republic of the Congo.
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