
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
Rectangle Triggerfish
Speckled Blue Grouper
Twospot Cardinalfish
Mandarin Dragonet
Lawnmower Blenny
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...
Leopard Blenny
Humpback Grouper
Peacock Grouper
Marine Betta
Ochre-striped Cardinalfish
Ocellaris Clownfish
Starry Dragonet
Smith’s Fangblenny
Red Sea Mimic Blenny
Threadfin Cardinalfish
Halfmoon Triggerfish
Blackbelly Triggerfish
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...
Midas Blenny
Five-lined Cardinalfish
Half Black Angelfish
Lyretail Hogfish
Orange Skunk Clownfish
Maldives Clownfish
Spotted Mandarin
Goldspot Blenny
Queen Triggerfish
Blue Throat Triggerfish
Orbiculate Cardinalfish
Arabian Picasso Triggerfish
Bluestriped Fangblenny
Overview Native to the Indo-Pacific region, commonly found near coral reefs and lagoon habitats. Distinctive slender body with alternating bright blue and black horizontal stripes. Known for its unique behavior of mimicking cleaner wrasses to approach other fish and...
Bicolor Blenny
Bluelined Hind
Herald’s Angelfish
Clown Triggerfish
Pink Skunk Clownfish
Clarkii Clownfish
Tobacco Basslet
White-streaked Grouper
Seale’s Cardinalfish
Lyretail Grouper
Pajama Cardinalfish
Picasso Triggerfish
Convict Blenny
Overview Native to the Indo-Pacific region, typically inhabiting coral reefs and rocky crevices. Distinctive eel-like body with striking black and white horizontal stripes, resembling a "convict" pattern. Known for its unique burrowing and schooling behavior, often...