
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.
Tobacco Basslet
Striated Wrasse
Overview Native to the Indo-Pacific region, typically inhabiting coral-rich reefs and rocky areas. Characterized by its slender, reddish body with horizontal white stripes and iridescent blue markings on the face and fins. Known for being shy and secretive, often seen...
Marcos’ Wrasse
Brazilian Basslet
Clown Wrasse
Spanish Hogfish
Lyretail Grouper
Harlequin Bass
Filamented Flasher Wrasse
Overview 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...
Helfrich’s Firefish
Hawaiian Cleaner Wrasse
Overview Found in the Indo-Pacific region. Known for their role in cleaning other fish by removing parasites. They have a slender body and a distinctive swimming pattern. Cleaner wrasses establish cleaning stations on the reef. Feeding They are primarily carnivores....
Dusky Wrasse
Pastel Green Wrasse
Swallowtail Hawkfish
Coral Hawkfish
Bluelined Hind
Herald’s Angelfish
Diana’s Hogfish
Pink Skunk Clownfish
Clarkii Clownfish
Zebra Dartfish
Fourline Wrasse
Zigzag Wrasse
White-streaked Grouper
Spotted Hawkfish
Spotfin Hogfish
Moon Wrasse
Lantern Bass
Longnose Hawkfish
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...
Cleaner Wrasse
Radiant Wrasse
Blackcap Basslet
Humpback Grouper
Falco Hawkfish
Coral Grouper
Coral Beauty Angelfish
Axilspot Hogfish
Percula Clownfish
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...
Saddled Basslet
Tail-spot wrasse
Speckled Blue Grouper
Solar Fairy Wrasse
Spotted Wrasse
Sixbar Wrasse
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...
Flame Hawkfish
Peacock Wrasse
Bicolor Cleaner Wrasse
Checkerboard Wrasse
Royal Gramma
Pineapplefish
Lubbock’s Fairy Wrasse
Peacock Grouper
Split-Level Hogfish
Blue-Spotted Wrasse
Ocellaris Clownfish
Sixline Wrasse
Overview Native to the Indo-Pacific, commonly found in coral reefs and rocky lagoons. Distinctive appearance with vibrant purple-blue body marked by six horizontal orange-red lines. Popular in aquariums for its active behavior and pest control, known to feed on small...
Purple Tilefish
Sixline Soapfish
Yellowtail Coris Wrasse
Redfin Fairy Wrasse
Peacock Wrasse
Belted Wrasse
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...
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...