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.

Barhead Spinefoot

Brazilian Basslet

Overview Endemic to the Southwestern Atlantic, particularly along the coast of Brazil. Closely related to the Royal Gramma but distinguished by its unique coloration. Recognized for its deep purple anterior fading into a golden-yellow posterior. Typically found in...

Seale’s Cardinalfish

Twospot Cardinalfish

Threadfin Cardinalfish

Orbiculate Cardinalfish

Pajama Cardinalfish

Foxface Rabbitfish

One Spot Foxface Rabbitfish

Magnificent Rabbitfish

Orange-Spotted Spinefoot

Coral Rabbitfish

Harlequin Bass

Lantern Bass

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...