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.

Watanabe’s Angelfish

Seale’s Cardinalfish

Twospot Cardinalfish

Threadfin Cardinalfish

Orbiculate Cardinalfish

Pajama Cardinalfish

Banggai Cardinalfish

Overview Endemic to the Banggai Islands of Indonesia, typically inhabiting shallow reefs and seagrass beds. Recognizable for its distinctive silver body, bold black vertical stripes, and white spots. Calm and peaceful nature, making it suitable for community reef...

Multi-barred Angelfish

Longnose Hawkfish

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...