Fishes
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Salmostoma bacaila
Cyprinids (Cyprinidae)
Salmostoma bacaila
Salmostoma bacaila, known scientifically as Salmostoma bacaila, belongs to the family Cyprinidae (Carps). This fish species originates from South Asia, inhabiting the river systems of Pakistan, India, Bangladesh, and…
Salt and Pepper Corydoras
Armored Catfish (Callichthyidae)
Corydoras habrosus
Corydoras habrosus is the name of this elegant Corydoras, also known as the Venezuelan Pygmy Cory. It belongs to the family Callichthyidae, which includes armored or callichthyid catfish. The common name of the fish…
Salvin's Cichlid
Cichlids (Cichlidae)
Trichromis salvini
Trichromis salvini, or Salvin's Cichlid, belongs to the family Cichlidae. Previously, this species was known as Cichlasoma salvini, before the classification was revised. It is characterized by a complex temperament and…
Sand Loach
Cobitidae (Loaches)
Lepidocephalichthys thermalis
The Sand Loach, scientifically known as Lepidocephalichthys thermalis, is a member of the family Cobitidae, or true loaches. This species is native to South Asia, found in the southern regions of India and on the island…
Sands's Corydoras
Armored Catfish (Callichthyidae)
Corydoras davidsandsi
Sands's Corydoras, also known as Cory Sands catfish (scientific name Corydoras davidsandsi), belongs to the family Callichthyidae — armored or callichthyid catfishes. It was named in honor of David Sands, a renowned…
Sanke Swordtail
Poeciliidae
Xiphophorus hellerii
The Sanke Swordtail, known scientifically as Xiphophorus hellerii (Koi Sanke variety), is a product of selective breeding from the common Green Swordtail and is not found in the wild. This fish belongs to the…
Santa Cruz Corydoras
Armored Catfish (Callichthyidae)
Corydoras cruziensis
The Santa Cruz Corydoras, scientifically known as Corydoras cruziensis, belongs to the family Callichthyidae (armored catfishes). The fish is named after the Santa Cruz Department in Bolivia (South America), where it…
Satanoperca acuticeps
Cichlids (Cichlidae)
Satanoperca acuticeps
Satanoperca acuticeps, formerly known as Geophagus heckelii, belongs to the family Cichlidae. This South American cichlid did not get its name by chance: it is characterized by a distinctive pointed head. This feature…
Satanoperca leucosticta
Cichlids (Cichlidae)
Satanoperca leucosticta
The scientific name Satanoperca leucosticta belongs to the family Cichlidae, and in English, this fish is called Satanoperca leucosticta. Its name, seemingly very formidable, comes from the Ancient Greek words Σατάν…
Sausage Loach
Cobitidae (Loaches)
Lepidocephalichthys tomaculum
The Sausage Loach, or Lepidocephalichthys tomaculum, belongs to the family Cobitidae. Its amusing common name is even reflected in its Latin designation: the word tomaculum directly translates to “sausage.” Scientists…
Savannah Tetra
Acestrorhamphidae
Hyphessobrycon stegemanni
The Savannah Tetra, scientifically known as Hyphessobrycon stegemanni, belongs to the Acestrorhamphidae family. Its care is straightforward, making it an excellent choice for most freshwater aquariums, as it coexists…
Scarlet Badis
Badidae
Dario dario
The Scarlet Badis, also known as Dario dario (its scientific name), belongs to the Badidae family. On this website, the species is classified into the Labyrinth Fish group (which includes the Gourami and Betta families)…
Schaller's Gourami
Osphronemidae
Trichopsis schalleri
Schaller's Gourami, scientifically known as Trichopsis schalleri, belongs to the family Osphronemidae. The fish is named after Dietrich Schaller, a tropical fish exporter who first introduced this species to the…
Schistura balteata
Nemacheilidae
Schistura balteata
The fish scientifically known as Schistura balteata, belonging to the family Nemacheilidae, is commonly referred to as the Schistura balteata. This species is relatively easy to keep and coexists well with many common…
Schistura Mae Hong Son
Nemacheilidae
Mustura maepaiensis
The fish, known scientifically as Mustura maepaiensis, belongs to the family Nemacheilidae and is called Schistura Mae Hong Son. This name comes from the mountainous province of Mae Hong Son in north-western Thailand,…
Schistura scaturigina
Nemacheilidae
Schistura scaturigina
The fish, known scientifically as Schistura scaturigina and belonging to the family Nemacheilidae (loaches), originates from South Asia. Its natural habitats are the upper reaches of the Ganges River basin, which spans…
Schistura spilota
Nemacheilidae
Schistura spilota
Schistura spilota, also known by its scientific name Schistura spilota, is a representative of the family Nemacheilidae. This fish is a rather rare guest among aquarium enthusiasts. Since 2016, it has been available on…
Schistura vinciguerrae
Nemacheilidae
Schistura vinciguerrae
Schistura vinciguerrae, also known as Vinciguerra's loach, belongs to the family Nemacheilidae. It was named after the zoologist Decio Vinciguerra, who made significant contributions to the study of fish species…
Schizodon fasciatus
Anostomidae
Schizodon fasciatus
The scientific name Schizodon fasciatus refers to the banded Schizodon, a member of the family Anostomidae. This fish is native to South America, where it can be found both in the upper reaches of the Amazon and in…
Schultz's Tetra
Acestrorhamphidae
Megalamphodus haraldschultzi
Timari Tetra, or Schultz's Tetra (Megalamphodus haraldschultzi), is a member of the Characin family. It is often called the Red Dwarf Tetra due to its striking coloration. This picturesque miniature fish is ideal for…
Scissortail Rasbora
Cyprinids (Cyprinidae)
Rasbora caudimaculata
Rasbora caudimaculata, known as the Scissortail Rasbora, belongs to the family Cyprinidae. It is an active, schooling fish of medium size. Although its coloration is not particularly bright, it compensates for this with…
Scleromystax prionotos
Armored Catfish (Callichthyidae)
Scleromystax prionotos
Scleromystax prionotos, known as the Scleromystax catfish, belongs to the family Callichthyidae, which unites armored or callichthyid catfishes. Its scientific and common names reflect a characteristic feature of the…
Selatan Gourami
Osphronemidae
Sphaerichthys selatanensis
The Selatan Gourami, also known as the Cross Chocolate Gourami under its scientific name Sphaerichthys selatanensis, belongs to the Osphronemidae family. The fish owes its name to the Indonesian province of Selatan,…
Semaprochilodus
Prochilodontids (Prochilodontidae)
Semaprochilodus taeniurus
Semaprochilodus taeniurus, scientifically known as Semaprochilodus taeniurus, is a member of the family Prochilodontidae, or Prochilodontids. This is a rather large species that requires a special diet rich in plant…
Sepik Rainbowfish
Rainbowfishes (Melanotaeniidae)
Glossolepis multisquamata
The Sepik Rainbowfish, also known as Glossolepis multisquamata, belongs to the family Melanotaeniidae. This fish gets its name from its original discovery location — the Sepik River on the northeastern coast of Papua…
Setnai Barb
Cyprinids (Cyprinidae)
Pethia setnai
Pethia setnai, known as the Setnai Barb, belongs to the family Cyprinidae. This species of barb was named after the Indian ichthyologist Setna, who was involved in its classification. This fish is easy to keep and…
Severum Efasciatus
Cichlids (Cichlidae)
Heros efasciatus
Cichlidae is the family to which the Severum Efasciatus cichlid belongs, known by its scientific name Heros efasciatus. This cichlid, native to South America, is one of the most popular, alongside Discus. It attracts…
Severum Notatus
Cichlids (Cichlidae)
Heros notatus
The Cichlasoma Severum Notatus, scientifically known as Heros notatus, is a member of the Cichlidae family. This large and beautiful fish possesses a range of qualities highly valued by hobbyists: it is hardy, easy to…
Sewellia lineolata
River Loaches (Balitoridae)
Sewellia lineolata
Sewellia lineolata, scientifically known as Sewellia lineolata, belongs to the family Balitoridae, or river loaches. This species of gastromyzon is quite popular due to its unique body pattern and relative ease of…
Sheep Pacu
Piranhas (Serrasalmidae)
Acnodon normani
Acnodon normani, widely known as Norman's Acnodon or Sheep Pacu, is a member of the family Serrasalmidae. This fish received its scientific name in honor of John Roxborough Norman (1898–1944), who made a significant…
Short-snouted Corydoras
Armored Catfish (Callichthyidae)
Corydoras brevirostris
The Short-snouted Corydoras, or Short-snouted Cory catfish, scientifically known as Corydoras brevirostris, belongs to the armored catfish family. Although this fish was described back in 1947 and has long been kept in…
Shubunkin
Cyprinids (Cyprinidae)
Carassius auratus
The history of the Shubunkin begins in Japan, where in 1892, breeder Yoshigoro Akiyama created this variety. He crossed a common Goldfish, a Calico Telescope Eye, and a single-tailed Wakin. In 1900, the new form…
Siamese Algae Eater
Cyprinids (Cyprinidae)
Crossocheilus oblongus
The Siamese Algae Eater, scientifically known as Crossocheilus oblongus, is a member of the Cyprinidae family. It is highly valued for its dietary preferences and is considered one of the most effective algae eaters.…
Siamese Catfish
Bagridae (naked catfishes)
Pseudomystus siamensis
Pseudomystus siamensis, known by the common names Asian Bumblebee Catfish, Siamese Orca Catfish, or simply Siamese Catfish, belongs to the Bagridae family. This small and rather attractive Asian catfish has no special…
Siamese Fighting Fish
Osphronemidae
Betta splendens
The fighting fish, also known as the Siamese Fighting Fish, with the scientific name Betta splendens, belongs to the family Osphronemidae. This fish attracts attention with its beauty and peculiar behavior. It is one of…
Siamese Spiny Eel
Spiny Eels (Mastacembelidae)
Macrognathus siamensis
The Siamese spiny eel, scientifically known as Macrognathus siamensis, belongs to the family Mastacembelidae, or spiny eels, and is classified as an eel. It can be found in the wild in Southeast Asia, particularly in…
Sickle Barracuda
Acestrorhynchidae
Acestrorhynchus falcatus
The Sickle Barracuda, scientifically known as Acestrorhynchus falcatus, belongs to the family Acestrorhynchidae. This fish earned the name "barracuda" due to its external resemblance to marine barracudas, although there…
Signatus
Cichlids (Cichlidae)
Lamprologus signatus
Lamprologus signatus, also known as Signatus, is a member of the Cichlidae family. Its natural habitat is Lake Tanganyika, located in East Africa, where this species is endemic. Signatus individuals are most commonly…
Silver Barb
Cyprinids (Cyprinidae)
Barbonymus gonionotus
The Silver Barb, scientifically known as Barbonymus gonionotus, belongs to the Cyprinidae family. This fish is most commonly found in commercial fisheries and is not a typical inhabitant of home aquariums. Its…
Silver Catfish
Schilbeid Catfishes (Schilbeidae)
Schilbe mystus
The Striped Schilbe, also known as the Silver Catfish (scientific name Schilbe mystus), belongs to the family Schilbeidae, or Schilbeid Catfishes. In some regions, it is called the African Butter Catfish. In its natural…
Silver Dollar
Piranhas (Serrasalmidae)
Metynnis argenteus
Metynnis argenteus, known as the Silver Dollar or Silver Metynnis, belongs to the family Serrasalmidae, also called the Piranha family. This fish got its name due to its widespread popularity among North American…
Silver Dollar Tetra
Acestrorhamphidae
Ctenobrycon spilurus
Ctenobrycon spilurus, known as the Silver Dollar Tetra, is a species belonging to the family Acestrorhamphidae. Its natural habitat is in South America: the Orinoco River basin, as well as the coastal river basins of…
Silver Hatchetfish
Freshwater Hatchetfish (Gasteropelecidae)
Gasteropelecus levis
The Silver Hatchetfish (scientific name Gasteropelecus levis) belongs to the family Gasteropelecidae. The genus name comes from the Greek gaster ("belly") and pelekys ("hatchet") and refers to the sharply keeled body…
Silver Labeo
Cyprinids (Cyprinidae)
Labeo forskalii
The scientific name Labeo forskalii indicates that the Silver Labeo belongs to the carp family (Cyprinidae). This fish originates from the African continent, specifically from the upper regions of the Nile River basin.…
Silver Loach
Botiidae
Yasuhikotakia lecontei
The Silver Loach, or Leconte's Loach (scientific name Yasuhikotakia lecontei), is a member of the Botiidae family. This name was given in honor of Dr. and entomologist John L. LeConte from Philadelphia, USA. Provided…
Silver Moony
Monodactylidae
Monodactylus argenteus
The Silver Moony, also known as the Silver Mono, bears the scientific name Monodactylus argenteus and belongs to the family Monodactylidae. These active and beautiful fish, when kept in a school, always look very…
Silver Shark
Ariidae
Ariopsis seemanni
The Colombian shark catfish, also known as the silver shark, bears the scientific name Ariopsis seemanni and belongs to the family Ariidae. This species earned its name due to its unique appearance, resembling a…
Simple Algae Eater
Cyprinids (Cyprinidae)
Tariqilabeo latius
Tariqilabeo latius, known as the Simple Algae Eater, belongs to the family Cyprinidae, or carps. This species is a close relative of the widely popular Siamese Algae Eater. Despite its unassuming coloration, it…
Simpsonichthys santanae
Rivulidae
Simpsonichthys santanae
Simpsonichthys santanae, or Santana's Pearlfish, belongs to the family Rivulidae. These fish are closely related to Nothobranchius, which inhabit a different continent—Africa, and this connection is evident in almost…
Sisor Catfish
Sisoridae (Asian hillstream catfishes)
Sisor rabdophorus
Sisor rabdophorus, known as the Sisor Catfish, belongs to the family Sisoridae. Its native habitat is Asia, specifically the northern regions of India, where it is found in the Ganges River basin. These fish inhabit…
Six-banded Barb
Cyprinids (Cyprinidae)
Desmopuntius hexazona
The Six-banded Barb, scientifically known as Desmopuntius hexazona, belongs to the family Cyprinidae. This peaceful, energetic, and vibrant fish will perfectly complement the inhabitants of your freshwater aquarium.
Six-banded Panchax
Nothobranchiidae
Epiplatys sexfasciatus
The Six-banded Epiplatys, or Six-banded Panchax, scientifically known as Epiplatys sexfasciatus, belongs to the family Nothobranchiidae. This species is a rare exception among Killifish, adapting perfectly to life in…
Six-eyed Tetra
Characidae
Phenacogaster tegatus
Phenacogaster tegatus, or Six-eyed Tetra (scientific name Phenacogaster tegatus), belongs to the Characidae family. This fish is perhaps not often seen in aquariums, as its subdued coloration does not allow it to stand…
Skunk Botia
Botiidae
Yasuhikotakia morleti
The Skunk Botia, or Skunk Loach, is also known as the Skunk Botia. Its scientific name is Yasuhikotakia morleti, and it belongs to the family Botiidae. This fish is considered relatively peaceful provided that tank…
Sleeping Catfish
Driftwood Catfishes (Auchenipteridae)
Entomocorus benjamini
Entomocorus benjamini, also known as the Sleeping Catfish, belongs to the family Auchenipteridae, or Driftwood Catfishes. It received this unusual name due to its behavioral characteristics: being nocturnal, this…
Slender Betta
Osphronemidae
Betta bellica
Betta bellica, or the slender betta, belongs to the Osphronemidae family. It is one of the first fighting fish known to Europeans, having been brought to Europe in 1905. However, it did not achieve the same fame as the…
Slender Hemiodopsis
Hemiodontidae
Hemiodus gracilis
The Slender Hemiodopsis (Hemiodus gracilis), belonging to the Hemiodontidae family, is a beautiful and graceful fish with a unique body pattern. It is highly active, which allows it to bring dynamism to any freshwater…
Slender Rainbowfish
Rainbowfishes (Melanotaeniidae)
Melanotaenia gracilis
The Slender Rainbowfish, also known as Melanotaenia gracilis, belongs to the family Melanotaeniidae. This fish is an excellent choice for beginner aquarists due to its hardiness and ease of care, while its attractive…
Slender Rasbora
Cyprinids (Cyprinidae)
Trigonopoma gracile
The Slender Rasbora, whose Latin name is Trigonopoma gracile, belongs to the Cyprinidae family. This miniature, active fish, kept in a school, can adorn any freshwater aquarium. It is characterized by its undemanding…
Slime Catfish
Pimelodidae (Long-whiskered Catfishes)
Brachyplatystoma platynema
The scientific name Brachyplatystoma platynema is assigned to the slime catfish, a representative of the family Pimelodidae (long-whiskered or flat-headed catfishes). Fishermen gave it this unusual name because bubbles…