Popular Saltwater Fish Species for your Aquarium

Here are some of the most popular saltwater fish species that are commonly kept in aquariums, each with unique characteristics and care requirements.

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.

Sargassum Triggerfish

Starry Dragonet

Spotted Mandarin

Rectangle Triggerfish

Zebra Dartfish

Queen Triggerfish

Seale’s Cardinalfish

Twospot Cardinalfish

Threadfin Cardinalfish

Blue Throat Triggerfish

Mandarin Dragonet

Halfmoon Triggerfish

Orbiculate Cardinalfish

Pajama Cardinalfish

Blackbelly Triggerfish

Arabian Picasso Triggerfish

Picasso Triggerfish

Rosenblatt’s Jawfish

Helfrich’s Firefish

Barred Hamlet

Native to the Western Pacific Ocean. Known for the elongated filaments on the dorsal fin of males, used in their flashing displays. Small and slender-bodied, with vibrant coloration that intensifies during courtship. Peaceful and active, preferring reef environments...