
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
White-streaked Grouper
Valentini Puffer
Starry Pufferfish
Threadfin Cardinalfish
Orbiculate Cardinalfish
Blackbelly Triggerfish
Longnose Hawkfish
Swallowtail Hawkfish
Coral Hawkfish
Bluelined Hind
Herald’s Angelfish
Ambon Puffer
Guineafowl Pufferfish
Masked Pufferfish
Tobacco Basslet
Speckled Blue Grouper
Caribbean Sharpnose Puffer
White-Spotted Pufferfish
Blue Throat Triggerfish
Pajama Cardinalfish
Arabian Picasso Triggerfish
Flame Hawkfish
Humpback Grouper
Falco Hawkfish
Coral Grouper
Coral Beauty Angelfish
Marine Betta
Map Pufferfish
Orange-Lined Cardinalfish
Redcoat Squirrelfish
Long-Spined Pufferfish
Hawaiian Whitespotted Toby
Seale’s Cardinalfish
Lyretail Grouper
Hawaiian Squirrelfish
Picasso Triggerfish
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...
Messmate Pipefish
Five-lined Cardinalfish
Peacock Grouper
Crowned Toby
Clown Triggerfish
Immaculate Pufferfish
Ochre-striped Cardinalfish
Rectangle Triggerfish
Spotted Hawkfish
Queen Triggerfish
Twospot Cardinalfish
Halfmoon Triggerfish
Crown Squirrelfish
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...