Zebra Dartfish
Ptereleotris zebra
Saltwater Fish Species
Browse our saltwater fish species profiles, each with care requirements, tank size, diet and reef compatibility.
A common rule of thumb for how many marine fish you can keep in an aquarium is to allow 1 inch of fish per gallon of water; however, this can vary depending on the specific fish species and their size, with reef tanks generally requiring even more space per fish due to their larger waste output and need for swimming room.
Scissortail Dartfish
Ptereleotris evides
Overview Native to the Indo-Pacific, commonly inhabiting reef slopes, lagoons, and sandy rubble areas. Recognizable by its slender body, pale bluish-grey coloration, and distinct black fins. Peaceful and shy nature, often observed hovering in open water above reefs or...
Skunk Tilefish
Hoplolatilus marcosi
Watanabe’s Angelfish
Genicanthus watanabei
Blue Gudgeon
Ptereleotris microlepis
Overview Native to the Indo-Pacific region, frequently found over sand and rubble substrates near reefs. Distinctive slender body with a pale blue-green coloration and iridescent blue highlights along its sides. Known for peaceful and timid behavior, typically...
Multi-barred Angelfish
Paracentropyge multifasciata
Firefish Goby
Nemateleotris magnifica
Overview Found in the Indo-Pacific region. Known for their striking appearance with elongated dorsal and caudal fin rays, and vibrant coloration, typically red, white, and yellow. They have a slender body and a peaceful demeanor. Also called the fire goby or...
Helfrich’s Firefish
Nemateleotris helfrichi
Decorated Dartfish
Nemateleotris decora
Overview Found in the Indo-Pacific region. Known for their elegant appearance with elongated dorsal fin rays and vibrant coloration, often including shades of purple, red, and white. They have a slender body and a peaceful demeanor. Decorated dartfish are often seen...
Stark’s Tilefish
Hoplolatilus starcki
Flashing Tilefish
Hoplolatilus chlupatyi
Swallowtail Angelfish
Genicanthus melanospilos
Overview Native to the Indo-Pacific, found in deep reef slopes and lagoons. Recognized for its elegant silver body, dark fin markings, and forked tail. Sexually dimorphic, with males having distinct black patterns on their dorsal and anal fins. One of the few...
Lamarck’s Angelfish
Genicanthus lamarck
Overview Native to the Indo-Pacific, commonly found in deep reef slopes and lagoons. Recognized for its elegant silver body with black horizontal stripes. A sexually dimorphic species, with females appearing more vibrant than males. Unlike many angelfish, it is...