
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.
Sailfin Tang
Rectangle Triggerfish
Schooling Bannerfish
Speckled Blue Grouper
Tinker’s Butterflyfish
Raccoon Butterflyfish
Seale’s Cardinalfish
Whitecheek Tang
Blue Throat Triggerfish
Pajama Cardinalfish
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...
Blue Hamlet
Kole Tang
Pacific Double-Saddle Butterflyfish
Fourspot Butterflyfish
Merten’s Butterflyfish
Orangeface Butterflyfish
Four-Eyed Butterflyfish
Blacktail Butterflyfish
Half Black Angelfish
Clown Triggerfish
Convict Tang
Powder Blue Surgeonfish
Yellow Tang
Shortnose Unicornfish
Pyramid Butterflyfish
Pearlscale Butterflyfish
Mirror Butterflyfish
Saddleback Butterflyfish
Twospot Cardinalfish
Purple Tang
Lyretail Grouper
Blackbelly Triggerfish
Blue Tang
Horned Bannerfish
Humpback Grouper
Melon Butterflyfish
Ornate Butterflyfish
Blackback Butterflyfish
Klein’s Butterflyfish
Burgess’ Butterflyfish
Bluelined Hind
Herald’s Angelfish
Orange-Lined Cardinalfish
Mimic Tang
Powder Brown Surgeonfish
Sargassum Triggerfish
Singular Bannerfish
Yellow Longnose Butterflyfish
Vagabond Butterflyfish
Rainford’s Butterflyfish
Threadfin Butterflyfish
Threadfin Cardinalfish
Brown Tang
Halfmoon Triggerfish
Arabian Picasso Triggerfish
Bluespine Unicorn Tang
Overview Found in the Indo-Pacific region. Known for their distinctive long horn-like protrusion on their forehead, which develops with age. They have a laterally compressed body and a lunate tail. Unicorn tangs are active swimmers and often seen grazing on algae....
Pennant Bannerfish
Copperband Butterflyfish
Golden Butterflyfish
Eightband Butterflyfish
Oval Butterflyfish
Saddleback Butterflyfish
Bennett’s Butterflyfish
Coral Grouper
Coral Beauty Angelfish
Ochre-striped Cardinalfish
Orange Shoulder Tang
Atlantic Blue Tang
Tobacco Basslet
Red Sea bannerfish
White-streaked Grouper
Teardrop Butterflyfish
Spotband Butterflyfish
Queen Triggerfish
Sohal Tang
Indian Ocean Sailfin Tang
Orbiculate Cardinalfish
Picasso Triggerfish
Naso Tang
Overview Found in the Indo-Pacific region. Known for their distinctive appearance, including a prominent nose horn (more developed in males) and vibrant coloration. They have a laterally compressed body and a lunate tail. Naso tangs are active swimmers and often seen...