
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
Barhead Spinefoot
Redcoat Squirrelfish
Rectangle Triggerfish
Zebra Dartfish
Scissortail Dartfish
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...
Yellowhead Jawfish
Overview Found in the western Atlantic Ocean, including the Caribbean Sea. Known for their bright yellow head and elongated body. They have a large mouth and are often seen hovering near their burrows. Yellowhead jawfish are peaceful and have a distinctive behavior of...
Violet Soldierfish
Queen Triggerfish
Blue Throat Triggerfish
Halfmoon Triggerfish
Foxface Rabbitfish
One Spot Foxface Rabbitfish
Magnificent Rabbitfish
Orange-Spotted Spinefoot
Coral Rabbitfish
Hawaiian Squirrelfish
Crown Squirrelfish
Blackbelly Triggerfish
Arabian Picasso Triggerfish
Picasso Triggerfish
Blue Gudgeon
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...
Maroon Clownfish
Overview Native to the Indo-Pacific, commonly inhabiting coral reefs and lagoon areas. Recognizable by its deep maroon coloration with distinctive white or yellowish vertical bands. Known for bold personality, territorial nature, and striking appearance. Popular among...
Goldspecs Jawfish
Overview Found in various marine environments worldwide. Known for their characteristic large mouths and burrowing behavior. They have elongated bodies and are often colorful. Jawfish are peaceful and have a distinctive behavior of building and inhabiting burrows....
Rosenblatt’s Jawfish
Firefish Goby
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. Magnificent dartfish are often seen...
Helfrich’s Firefish
Decorated Dartfish
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...
Twospot Soldierfish
Overview Native to the Indo-Pacific region, often found in lagoons and seaward reefs. Recognized by its vibrant red or orange body, distinctive black tips on its dorsal fin, and large eyes. Nocturnal species, typically seeking shelter in caves or crevices during the...
Darkfin Soldierfish
Overview Found in the Indo-Pacific region. Known for their reddish coloration and deep body shape, typical of soldierfish. They have large eyes, adapted for nocturnal activity. Shadowfin soldierfish are often found in caves or under ledges. Feeding They are nocturnal...