Top Results for Small Fish

Deep-sea hatchetfishes are small marine fishes in the family Sternoptychidae, recognized by their thin, laterally compressed bodies and deep, hatchet-like profiles. Many inhabit the mesopelagic zone and undertake daily vertical migrations to feed nearer the surface at night. Rows of ventral photopho...

The Firefish, *Nemateleotris magnifica*, is a vibrant saltwater fish known for its distinctive red and yellow coloration and dramatically elongated dorsal fin. As a dendrobatid goby, it’s notable for its peaceful temperament making it suitable for community aquariums. It's commonly kept by hobbyists...

The Coral Beauty Angelfish, *Centropyge bispinosa*, is a small saltwater fish characterized by its vibrant blue and orange coloration. It's notable for being a visually appealing addition to reef aquariums and relatively easy to care for, making it suitable for beginner hobbyists. This dwarf angelfi...

The Kole Tang, *Ctenochaetus strigosus*, is a small saltwater fish commonly kept in aquariums. This species is notable for its vibrant coloration and effective algae-eating behavior. Its peaceful temperament makes it suitable for beginner reef keepers and community tanks alongside smaller, non-aggre...

The Paperspine Fishhook Cactus, scientifically named Sclerocactus papyracanthus, is a small, spherical cactus native to the grasslands of New Mexico and Arizona. It is biologically distinguished by its highly unusual radial spines, which are flat, flexible, and papery, resembling bits of white paper...

The smalleye pygmy shark (Squaliolus aliae) is a deep-water shark species recognized as one of the smallest known sharks in the world, reaching a maximum length of only about 22 centimeters. First scientifically described from Japanese waters in 1912, this shark inhabits the mesopelagic and bathypel...

The Blue Chromis is a small saltwater damselfish known for its vibrant cyan coloration. This tropical fish thrives in groups, creating visually appealing schooling displays within aquariums. It’s suitable for beginner reef keepers and those seeking peaceful, colorful additions to larger marine tanks...

Etmopterus pusillus, commonly known as the smooth lanternshark, is a small species of deep-sea shark belonging to the family Etmopteridae. First described in 1839, this mesopelagic fish inhabits the deep waters of the Atlantic and Pacific oceans. It is distinguished by the presence of bioluminescent...

Sclerocactus wrightiae, commonly known as Wright's fishhook cactus, is a small barrel cactus endemic to a limited area of Utah, primarily in Emery and Wayne counties. It is listed as a federally endangered species due to its restricted range and threats including illegal collection and habitat distu...

The numbfish, also known as the coffin ray, is a species of electric ray endemic to the coastal waters of Australia. It is the sole member of the family Hypnidae and exhibits a benthic lifestyle, resting on the seafloor. Like other electric rays, it possesses specialized organs capable of generating...

The Orange Spotted Goby, Amblyeleotris guttata, is a small saltwater fish notable for its symbiotic relationship with pistol shrimp. This goby species actively sands aquarium substrates, consuming detritus and small invertebrates. It’s frequently favored by beginner aquarists seeking a peaceful addi...

Tobusch fishhook cactus (Ancistrocactus brevihamatus) is a small, rare cactus endemic to the Edwards Plateau region of Texas. Named after Fred Tobusch, the plant features hooked central spines and yellowish-green flowers. It was listed as a federally endangered species due to severe habitat loss, pr...

The velvet belly lanternshark, Etmopterus spinax, is a small deep-water shark found in the northeastern Atlantic Ocean and the Mediterranean Sea. It has a dark underside bearing light-producing organs called photophores, which generate bioluminescence and may help reduce its silhouette when viewed f...

Carybdea alata is a species of cubozoan, or box jellyfish, with a documented distribution across tropical and subtropical waters of the Indo-Pacific and Atlantic Oceans. Like other cubozoans, it possesses a transparent, box-shaped bell and four tentacles equipped with nematocysts capable of deliveri...

The Helmet Goby (Coryphopterus personatus) is a small saltwater fish characterized by its translucent body and distinctive blue marking near its gills. This goby is notable for its peaceful temperament and suitability for smaller aquariums, particularly nano tanks. It’s commonly kept by beginner ree...

*Carybdea marsupialis* is a species of box jellyfish belonging to the class Cubozoa, predominantly found in the Mediterranean Sea and parts of the Atlantic Ocean. Measuring only a few centimeters in bell diameter, this transparent cnidarian possesses four tentacles equipped with nematocysts used to...

Carybdea rastonii, commonly called the jimble, is a small species of box jellyfish recorded from temperate coastal waters of Australia and New Zealand. Its transparent, box-shaped bell bears four tentacles, one extending from each lower corner. Contact with the tentacles can produce a painful sting,...

Pearlsides are small marine fish belonging to the genus Maurolicus, which is part of the family Sternoptychidae (hatchetfishes). These fish are mesopelagic, meaning they inhabit the middle depths of the ocean, typically performing daily vertical migrations. They are characterized by their silvery, r...

Blackfordia virginica is a hydrozoan in the family Blackfordiidae that alternates between a small hydroid stage and a conspicuous planktonic medusa stage. It is regarded as native to the Black Sea and Sea of Azov and has been reported as introduced to brackish estuaries and coastal waters in North A...

Cunina octonaria is a small narcomedusa in the hydrozoan class, with a life cycle that includes a parasitic polypoid stage. Its larvae and stolon-like growth can live on or inside other medusae, and documented hosts include Liriope tetraphylla; earlier observations also associate Cunina larvae with...

A small Chihuahuan Desert cactus native to Texas and northern Mexico, characterized by strongly hooked central spines adapted for animal-aided seed dispersal.

Proboscidactyla ornata is a small hydrozoan whose medusa stage lives in association with the tubes of polychaete worms. The relationship is generally described as commensal: the jellyfish gains a place to live and access to food-bearing water while the worm is not treated as its prey; the species oc...

Carybdea brevipedalia is a species of box jellyfish in the class Cubozoa, recorded from coastal waters around Japan. The name refers to its relatively short pedalia, the structures extending from the lower corners of the box-shaped bell and bearing the tentacles. Like other cubozoans, it is a venomo...

The Deep Sea Smelt, Bathylagus euryops, is a small marine fish in the family Bathylagidae. It lives in the deep pelagic waters of the North Atlantic and is adapted to a low-light environment below the surface. The species forms part of the food web as prey for larger fish and other oceanic predators...

Cyclothone pallida, known as the pallid bristlemouth, is a small deep-sea fish in the family Gonostomatidae. It is a mesopelagic species, meaning it lives in the open-water zone below the sunlit surface layer, and records place it across parts of the Atlantic and Pacific at roughly 200 to 1,500 metr...

Phialidium gregarium is a leptomedusa, a type of hydrozoan jellyfish, recorded along the Pacific coast of North America. It is a coastal species associated with bays and estuaries and may occur in large seasonal aggregations. As a hydrozoan, it differs from the large-bodied scyphozoan jellyfish comm...

Ancistrocactus scheeri is a small cactus species commonly called Scheer's fishhook cactus; the name is also treated in modern taxonomic sources as a synonym of Sclerocactus scheeri. It is native to parts of Texas and northeastern Mexico, including Tamaulipas, and typically has a solitary, globular t...

Carybdea xaymacana is a venomous box jellyfish in the family Carybdeidae, within the class Cubozoa. Conant described the species in 1897, and it has been recorded in the Caribbean and western tropical Atlantic, including waters near Jamaica. Its transparent, cube-shaped bell has four lower corners,...

Vinciguerria poweriae, commonly called Power's lightfish or Power's deep-water bristle-mouth fish, is a marine lightfish in the family Phosichthyidae. It is a small, circumglobal species recorded from subtropical waters and depths from about 50 to 1,500 meters, with adults usually found between 300...