
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
Sargassum Triggerfish
Rectangle Triggerfish
Shortnose Unicornfish
Fourline Wrasse
Marcos’ Wrasse
Zigzag Wrasse
Tail-spot wrasse
Sixline Soapfish
Yellowtail Coris Wrasse
Spanish Hogfish
Spotfin Hogfish
Purple Tang
Brown Tang
Indian Ocean Sailfin Tang
Peacock Wrasse
Blue Throat Triggerfish
Moon Wrasse
Sixbar Wrasse
Halfmoon Triggerfish
Belted Wrasse
Blackbelly Triggerfish
Arabian Picasso Triggerfish
Picasso Triggerfish
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...
Blue Tang
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....
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...