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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
Goldfish
Carassius auratus
The goldfish is a freshwater fish in the family Cyprinidae of the order Cypriniformes. It is commonly kept as a pet in indoor aquariums, and is one of the most popular aquarium fish. Goldfish released into the wild have become an invasive pest in parts of North America and Australia.
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fish
Betta Fish
Betta splendens
The Siamese fighting fish, commonly known as the Siamese fighter, or locally as the betta, is a freshwater fish native to Mainland Southeast Asia, namely Cambodia, Laos, Myanmar, Malaysia, Thailand, and Vietnam. It is one of more than 70 species of the genus Betta, but the only one eponymously called "betta", owing to its global popularity as a pet; Betta splendens are among the most popular aquarium fish in the world, due to their diverse and colorful morphology and relatively low maintenance.
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fish
Guppy
Poecilia reticulata
The guppy, also known as the peacock fish, millionfish or rainbow fish, is a member of the family Poeciliidae and, akin to most New World members of the family, is classified as a livebearer. Male guppies, which are smaller than females, have ornamental caudal and dorsal fins. Wild guppies generally feed on a variety of food sources, including benthic algae and the larvae of aquatic insects.
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M
fish
Molly
Poecilia sphenops
Molly or mollies may refer to:
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P
fish
Platy
Xiphophorus maculatus
Platy (Xiphophorus maculatus)
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fish
Swordtail
Xiphophorus hellerii
The green swordtail is a species of freshwater/brackish fish in family Poeciliidae of order Cyprinodontiformes. A live-bearer, it is closely related to the southern platyfish or 'platy' (X. maculatus) and can crossbreed with it. It is native to an area of North and Central America stretching from Veracruz, Mexico, to northwestern Honduras.
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T
fish
Tetra
Paracheirodon innesi
Tetra (Paracheirodon innesi)
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A
fish
Angelfish
Pterophyllum scalare
Angelfish (Pterophyllum scalare)
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fish
Discus
Symphysodon aequifasciatus
The discus throw, also known as disc throw, is a track and field event in which the participant athlete throws an oblate spheroid weight – called a discus – in an attempt to achieve a farther distance than other competitors. It is an ancient sport originated in ancient Greece, as demonstrated by the fifth-century-BC Myron statue Discobolus. Although not part of the current pentathlon, it was one of the events of the ancient Greek pentathlon, which can be dated back to at least 708 BC, and it is part of the modern decathlon.
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O
fish
Oscar
Astronotus ocellatus
Oscar, OSCAR, or The Oscar may refer to:
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fish
Cichlid
Maylandia zebra
The zebra mbuna is a species of cichlid endemic to Lake Malawi in Africa. This species can reach a length of 11.3 cm (4.4 in). It feeds on aufwuchs, a surface layer of mostly algal material that grows on rocks. This cichlid is a mouthbrooder and the female broods the eggs in her mouth for about three weeks. This fish can sometimes be found in the aquarium trade.
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fish
Gourami
Trichogaster trichopterus
The three spot gourami, also known as the opaline gourami, blue gourami, and gold gourami, is a species of fish native to southeastern Asia, but also introduced elsewhere. This gourami gets its name from the two spots along each side of its body in line with the eye, considered the third spot. This species is of minor commercial importance as a food fish in its native range and is also farmed. It is also popular in the aquarium trade. The species reaches 15 cm in standard length.
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fish
Barb
Puntius tetrazona
The tiger barb or Sumatra barb, is a species of tropical cyprinid fish.
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fish
Danio
Danio rerio
The zebrafish is a species of danionin belonging to the genus Danio in the suborder Cyprinoidei. Native to South Asia, it is a popular, hardy aquarium fish, frequently sold under the trade name zebra danio.
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fish
Rasbora
Trigonostigma heteromorpha
The harlequin rasbora is a small fish in the family Cyprinidae. The species became an instant favorite among aquarists after its introduction in the early 1900s and is the best known and most widely kept species among the rasboras. In 1935, an image of a trio of harlequin rasboras, stamped in 14k gold, graced the cover of the first edition of William T. Innes's classic Exotic Aquarium Fishes, and remained through all 19 editions.
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fish
Loach
Botia macracantha
The clown loach, or tiger botia, is a tropical freshwater fish belonging to the botiid loach family. It is the sole member of the genus Chromobotia. It originates in inland waters in Indonesia on the islands of Sumatra and Borneo. The fish is called ulanguli by the locals in Sentarum, West Borneo. It is a popular fish in the freshwater aquarium trade and is sold worldwide.
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fish
Catfish
Corydoras aeneus
The bronze corydoras, also known as the green corydoras, bronze catfish, lightspot corydoras or wavy catfish, is a species of freshwater fish in the armored catfish family, Callichthyidae, often kept as an aquarium fish. It is widely distributed in South America on the eastern side of the Andes, from Colombia and Trinidad to the Río de la Plata basin; however, as presently defined it is a species complex and a taxonomic review is necessary. It was originally described as Hoplosoma aeneum by Theodore Gill in 1858 and has historically also been referred to as Corydoras aeneus.
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P
fish
Plecostomus
Hypostomus plecostomus
Plecostomus (Hypostomus plecostomus)
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fish
Koi
Cyprinus carpio
Koi , or more specifically nishikigoi , are colored varieties of carp that are kept for decorative purposes in outdoor koi ponds or water gardens.
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C
fish
Clownfish
Amphiprion ocellaris
Clownfish (Amphiprion ocellaris)
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