Fishes
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Beckford's Pencilfish
Lebiasinidae
Nannostomus beckfordi
Nannostomus beckfordi, belonging to the family Lebiasinidae, is a miniature and rather active fish, rarely exceeding 4 cm in length. A small school of these fish can be a magnificent addition to a tropical aquarium.…
Belonesox
Poeciliidae
Belonesox belizanus
The Belonesox, scientifically known as Belonesox belizanus, is a member of the Poeciliidae family. Despite its relatively small size, this species is considered a formidable predator, preferring to hunt from ambush. Its…
Belontia signata
Osphronemidae
Belontia signata
Belontia signata, also known as the Combtail Gourami, belongs to the family Osphronemidae. It is sometimes called the "Sri Lankan Fighting Fish" due to its aggressive nature. It is not suitable for a community tank; it…
Bengal Danio
Cyprinids (Cyprinidae)
Devario devario
The scientific name Devario devario is given to the Bengal Danio, a member of the Cyprinidae family. This interesting schooling fish, with its understated but original body pattern, is easy to keep and breed, provided…
Bengal Loach
Botiidae
Botia dario
Botia dario, also known as the Bengal Loach (scientific name Botia dario), belongs to the family Botiidae (Loaches). This fish is undemanding and easy to keep, coexisting well with many popular aquarium inhabitants. It…
Berdmore's Loach
Botiidae
Syncrossus berdmorei
Berdmore's Loach, also known as the Red-tailed Tiger Botia or Blyth's Loach (Syncrossus berdmorei, family Botiidae), is a striking fish that can truly adorn a freshwater aquarium with its original pattern. However, its…
Berlin Swordtail
Poeciliidae
Xiphophorus hellerii
The Berlin Swordtail, known in the English-speaking world as the Red Wagtail Swordtail, is an artificially bred variety. This hybrid, resulting from the crossbreeding of the common Green Swordtail (Xiphophorus hellerii)…
Betta albimarginata
Osphronemidae
Betta albimarginata
Betta albimarginata, or the White-Seam Betta (scientific name Betta albimarginata), belongs to the family Osphronemidae. This miniature fish has a bright and attractive appearance, but these characteristics mainly apply…
Betta balunga
Osphronemidae
Betta balunga
The scientific name Betta balunga refers to a fish known as Betta balunga or Balunga Betta, belonging to the family Osphronemidae. These fish are named after the region on the island of Borneo where they were first…
Betta burdigala
Osphronemidae
Betta burdigala
Betta burdigala, or Bordeaux Betta, belongs to the family Osphronemidae. A distinctive feature of this fish is its beautiful red coloration, which reminded French researchers of the noble color of the famous Bordeaux…
Betta Edith
Osphronemidae
Betta edithae
The scientific name Betta edithae, or Betta Edith, or Edith's Fighting Fish, indicates its belonging to the Osphronemidae family. This fish was named in honor of the researcher Edith Korthaus, a naturalist who…
Betta enisae
Osphronemidae
Betta enisae
Betta enisae, or as it is often called, the Energetic Betta, belongs to the family Osphronemidae, receiving its Russian name through adaptive translation from Latin. Despite this, one should not expect high mobility…
Betta falx
Osphronemidae
Betta falx
Betta falx, or Falx Betta, belongs to the family Osphronemidae. This fish, known by the scientific name Betta falx, is a representative of the fighting fish group, yet its calm disposition distinguishes it from its more…
Betta gladiator
Osphronemidae
Betta gladiator
The Betta gladiator fish, also known as the Gladiator Betta, bears the scientific name Betta gladiator and belongs to the family Osphronemidae. Its "fighting" name fully justifies the established perception of it, as…
Betta hendra
Osphronemidae
Betta hendra
The scientific name Betta hendra was given to Hendra's Betta, or Betta hendra, within the family Osphronemidae. This species was named after the Indonesian naturalist Hendra Tommy, who first discovered it. This fish is…
Betta krataios
Osphronemidae
Betta krataios
Betta krataios, or Krataios Betta, is classified as a member of the family Osphronemidae and bears the scientific name Betta krataios. This species belongs to the group of Fighting Fish, however, its temperament and…
Betta kuehnei
Osphronemidae
Betta kuehnei
The scientific name Betta kuehnei, or Kuehne's Betta, belongs to the family Osphronemidae. This fish was named in honor of collector Jens Kuehne, whose efforts brought it widespread recognition among aquarists. It is…
Betta lehi
Osphronemidae
Betta lehi
The scientific name Betta lehi belongs to the family Osphronemidae, named in honor of zoologist Charles Leh from the Sarawak Museum in Borneo. This peaceful fish, also known as Leh's Betta, coexists well with other…
Betta mandor
Osphronemidae
Betta mandor
The Betta mandor fish, officially named Betta mandor by scientists, belongs to the family Osphronemidae. Before this species was scientifically described in 2006, it was nicknamed "Ninja Betta." This name was given due…
Betta Midas
Osphronemidae
Betta midas
Betta midas, or Midas Betta (scientific name Betta midas), belongs to the Osphronemidae family. This fish owes its name to its remarkable golden coloration, which refers to the myth of the ancient Greek king Midas, who…
Betta ocellata
Osphronemidae
Betta ocellata
Betta ocellata, also known as the Ocellated Betta or Ocellata Betta, belongs to the family Osphronemidae. This fish has not gained widespread popularity among amateur aquarists because, despite its ease of keeping and…
Betta patoti
Osphronemidae
Betta patoti
The scientific name Betta patoti is given to the Betta patoti fish, or Patoti Betta, which belongs to the family Osphronemidae. This fish is part of the fighting fish group, which explains its challenging temperament…
Betta persephone
Osphronemidae
Betta persephone
The fish Betta persephone, or Persephone Betta, belonging to the family Osphronemidae, received its scientific name Betta persephone in honor of the ancient Greek goddess Persephone, Queen of the Underworld, which…
Betta Pi
Osphronemidae
Betta pi
Betta pi, scientifically known as Betta pi, belongs to the family Osphronemidae. This species owes its unusual name to a pattern around its mouth that resembles the Greek letter π (Pi). This fish is considered quite…
Betta prima
Osphronemidae
Betta prima
Betta prima, also known as Betta prima, is a member of the family Osphronemidae. This peaceful and calm fish coexists well with other similarly sized species. Its care and breeding do not present any particular…
Betta renata
Osphronemidae
Betta renata
Betta renata, or Renata's Betta, belongs to the family Osphronemidae and received its scientific name. It is not the most vibrant representative of fighting fish, perhaps which is why it doesn't often attract the…
Betta Sima
Osphronemidae
Betta simorum
Betta simorum, or Sima's Betta, is the name of this fish, which belongs to the family Osphronemidae. The species is named after Thomas Sim, the owner of Sindo Aquarium Pte. Ltd. (Jambi, Indonesia) and the first exporter…
Betta simplex
Osphronemidae
Betta simplex
Betta simplex, or the simple Betta, belongs to the family Osphronemidae. Interestingly, despite its name and classification, this species has more in common with gouramis than with the so-called fighting fish. Its…
Betta uberis
Osphronemidae
Betta uberis
Betta uberis, or Betta Ubera, is classified in the family Osphronemidae. This species of Betta fish is not recommended for beginner aquarists, as it requires maintaining very strict hydrochemical water parameters.
Betta unimaculata
Osphronemidae
Betta unimaculata
Betta unimaculata, a member of the family Osphronemidae, is a fighting fish that fully lives up to its name. Males of this species display a temperamental character, often engaging in skirmishes over territory and…
Biara
Cynodontidae
Rhaphiodon vulpinus
The fish known as the Biara, or Chaparrin, with the scientific name Rhaphiodon vulpinus, belongs to the family Cynodontidae. This large predator is not suitable for beginner aquarists. It requires a very spacious…
Biotoecus Cichlid
Cichlids (Cichlidae)
Biotoecus opercularis
Biotoecus opercularis, known as the Biotoecus cichlid, belongs to the family Cichlidae and originates from South America. Its natural habitat extends across almost the entire Amazon River basin. For keeping in home…
Bitterling Fish
Cyprinids (Cyprinidae)
Rhodeus amarus
The Bitterling fish, known scientifically as Rhodeus amarus, belongs to the Carp family (Cyprinidae). This representative of European aquatic fauna is found primarily in lakes and slow-moving rivers with abundant…
Black and White Molly
Poeciliidae
Poecilia sphenops
The collective term “black and white molly” usually refers to several selective breeding forms, distinguished by their characteristic body coloration, where white and black tones predominate. Examples of such forms…
Black and Yellow Molly
Poeciliidae
Poecilia sphenops
The Black and Yellow Molly, also known as the “Gold Dust Molly,” gets its names from the English trade names Gold And Black Molly Fish and Gold Dust Molly, respectively. These names refer to a color morph of Poecilia…
Black Betta
Osphronemidae
Betta imbellis
The scientific name Betta imbellis belongs to the family Osphronemidae, indicating its kinship with the Black Betta or Dwarf Betta. However, many colloquial names for the fish include “dwarf,” which is not entirely…
Black Ghost Knifefish
Apteronotidae
Apteronotus albifrons
The scientific name Apteronotus albifrons refers to the "Black Ghost Knifefish," also known as the "Black Knifefish" or "Black Ghost." It is a member of the family Apteronotidae. There is a curious, though unconfirmed,…
Black Guppies
Poeciliidae
Poecilia reticulata
Black Monk Guppies, also known as Black Guppies, are a breed of Poecilia reticulata (Black strain) from the Poeciliidae family. One of the main features of this variety is the pronounced dark body coloration in males.…
Black Knife Fish
Notopteridae
Xenomystus nigri
The African knife fish, scientifically known as Xenomystus nigri, belongs to the Notopteridae family. This species is notably hardy and can coexist well with many aquarium inhabitants of appropriate size. For novice…
Black Labeo
Cyprinids (Cyprinidae)
Labeo chrysophekadion
Labeo chrysophekadion, also known as the Black Labeo, belongs to the family Cyprinidae. Due to its impressive size and complex temperament, this species is quite demanding and not recommended for aquarium beginners.
Black Lancer Catfish
Bagridae (naked catfishes)
Bagrichthys macracanthus
The Black Lancer Catfish, also known as the Javelin Catfish, bears the scientific name Bagrichthys macracanthus and belongs to the Bagridae family. Its name — “Lancer” — refers to the unusual, lance-like shape of its…
Black Molly
Poeciliidae
Poecilia sphenops
The Black Molly, often simply called Black Molly, is apparently a selective color variation of the well-known Sailfin Molly (Poecilia sphenops). At the same time, some authoritative breeders prefer the version that it…
Black Moor Goldfish
Cyprinids (Cyprinidae)
Carassius auratus
Among the varieties of Telescope Goldfish, the Black Moor stands out, known as the Black Moor Goldfish. This fish is easily recognized by its short, rounded or egg-shaped body and characteristic large eyes that…
Black Morpho Tetra
Crenuchidae
Poecilocharax weitzmani
Poecilocharax weitzmani, also known as the Black Morpho Tetra or Weitzman's Pencilfish, belongs to the family Crenuchidae. It is rarely found in home aquariums due to its high level of care difficulty. This species is…
Black Neon Tetra
Acestrorhamphidae
Hyphessobrycon herbertaxelrodi
Hyphessobrycon herbertaxelrodi, also known as the Black Neon Tetra, belongs to the family Acestrorhamphidae. This fish is characterized by its energetic nature and attractive appearance, especially due to the bright,…
Black Pacu
Piranhas (Serrasalmidae)
Colossoma macropomum
Colossoma macropomum, more commonly known as Black Pacu or Tambaqui, is a member of the family Serrasalmidae. Although it belongs to the same category as popular aquarium inhabitants like Tetras and Neons, the striking…
Black Paradise Fish
Osphronemidae
Macropodus spechti
The Black Paradise Fish, scientifically known as Macropodus spechti, belongs to the family Osphronemidae. Previously, it was often referred to as the Macropodus concolor, considered a color variation of the classic…
Black Piranha
Piranhas (Serrasalmidae)
Serrasalmus rhombeus
The Rhombic, or Black Piranha, also known as the Red-Eyed Piranha (scientific name Serrasalmus rhombeus), belongs to the subfamily Serrasalminae. This fish is one of the most recognizable. Although its reputation as a…
Black Platy
Poeciliidae
Xiphophorus maculatus
Platy Black is the trade name for this variety of Black Platy in the English-speaking market. This fish is not found in nature, as it is an artificially bred color variation derived from the common Platy (Xiphophorus…
Black Ruby Barb
Cyprinids (Cyprinidae)
Pethia nigrofasciata
Pethia nigrofasciata, also known as the Black Ruby Barb or Purplehead Barb, belongs to the family Cyprinidae. This fish is distinguished by its beauty and high level of activity. It is perfectly adapted to life in a…
Black Skirt Tetra (Veiltail)
Acestrorhamphidae
Gymnocorymbus ternetzi
Gymnocorymbus ternetzi, more commonly known as the Long-finned Black Skirt Tetra, belongs to the Acestrorhamphidae family. This fish represents one of the morphological variations of the Black Skirt Tetra, distinguished…
Black Swordtail
Poeciliidae
Xiphophorus hellerii
The Black Swordtail, scientifically known as Xiphophorus hellerii (Black variety), belongs to the Poeciliidae family. This fish is distinguished by its uniform dark body coloration, which gives it its name. Under…
Black Tetra
Acestrorhamphidae
Gymnocorymbus ternetzi
The Black Tetra, also known as the Black Skirt Tetra or Black Widow Tetra, has the scientific name Gymnocorymbus ternetzi and belongs to the Acestrorhamphidae family. This fish is an excellent choice for beginner…
Black-and-white Corydoras
Armored Catfish (Callichthyidae)
Corydoras leucomelas
The Black-and-white Corydoras, also known as the Black-and-white Cory cat, scientifically named Corydoras leucomelas, belongs to the family of armored catfish, or Callichthyidae. Its name, derived from the Latin words…
Black-jaw Panchax
Nothobranchiidae
Epiplatys dageti
The Epiplatys dageti, also known as the Black-jaw Panchax, belongs to the family Nothobranchiidae. This peaceful and elegant fish is a perfect fit for a community aquarium. They are moderately hardy and undemanding,…
Blackbanded Limia
Poeciliidae
Limia nigrofasciata
Limia nigrofasciata, also known as the blackbanded limia, is part of the Poeciliidae family. This fish is easy to keep and breed in an aquarium and coexists well with various species, making it an excellent choice for…
Blackbanded sunfish
Sunfishes (Centrarchidae)
Enneacanthus chaetodon
Enneacanthus chaetodon, or the blackbanded sunfish, belongs to the family Centrarchidae, widely known as sunfishes. In English-speaking countries, it is called the Blackbanded sunfish.
Blackbelly Limia
Poeciliidae
Limia melanogaster
Limia melanogaster, known as the Blackbelly Limia, belongs to the family Poeciliidae. These fish are characterized by their undemanding nature, successful breeding, and good compatibility with various tank mates. Such…
Blackfin Markiana
Stevardiidae
Markiana nigripinnis
Markiana nigripinnis, also known as the Blackfin Markiana, is a member of the Stevardiidae family, which includes characin fish. Its native range is the subtropical regions of South America. These fish inhabit the…
Blackspot Piranha
Piranhas (Serrasalmidae)
Pygocentrus cariba
The Blackspot Piranha, scientifically known as Pygocentrus cariba, belongs to the Serrasalmidae family and is considered one of the most famous predators of river depths. Despite its widespread notoriety, few aquarists…