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.

Queen Angelfish

Watanabe’s Angelfish

Spotted Hawkfish

Whitetail Pygmy Angelfish

Rusty Angelfish

Magenta Dottyback

Overview Native to the Western Pacific, commonly found inhabiting coral reefs and rocky crevices. Recognized by its striking magenta-purple coloration that can vary slightly in intensity. Known for its bold and territorial behavior, suitable for aquarists with some...

Koran Angelfish

Overview Native to the Indo-Pacific region, commonly found around coral reefs and lagoon environments. Known for its vibrant blue-green body with distinctive semicircular patterns and intricate blue markings on the fins. Juveniles have bold blue, black, and white...

Gray Angelfish

Overview Native to the Western Atlantic, commonly found near coral reefs and rocky outcroppings in the Caribbean and Gulf of Mexico. Large angelfish with a dark gray body covered in lighter scale markings and a broad, crescent-shaped tail fin. Juveniles feature a...

Longnose Hawkfish

Flame Hawkfish

King Angelfish

Swallowtail Angelfish

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

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...