
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
Singular Bannerfish
Yellow Longnose Butterflyfish
Tinker’s Butterflyfish
Raccoon Butterflyfish
Brown Tang
Blue Tang
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...
Pacific Double-Saddle Butterflyfish
Blackback Butterflyfish
Collare Butterflyfish
Bluelined Hind
Convict Tang
Atlantic Blue Tang
Tobacco Basslet
Red Sea bannerfish
Pearlscale Butterflyfish
Mirror Butterflyfish
Saddleback Butterflyfish
Indian Ocean Sailfin Tang
Helfrich’s Firefish
Horned Bannerfish
Latticed Butterflyfish
Lined Butterflyfish
Four-Eyed Butterflyfish
Peacock Grouper
Mimic Tang
Redcoat Squirrelfish
Schooling Bannerfish
Vagabond Butterflyfish
Rainford’s Butterflyfish
Threadfin Butterflyfish
Hawaiian Squirrelfish
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
Fourspot Butterflyfish
Klein’s Butterflyfish
Burgess’ Butterflyfish
Marine Betta
Orange Shoulder Tang
Shortnose Unicornfish
Pyramid Butterflyfish
Teardrop Butterflyfish
Spotband Butterflyfish
Purple Tang
Crown Squirrelfish
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...