
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
Shortnose Unicornfish
Pyramid Butterflyfish
Barred Soapfish
Talbot’s Damselfish
Teardrop Butterflyfish
Spotband Butterflyfish
Saddleback Clownfish
Sohal Tang
Brown Tang
Lemon Damselfish
Overview Native to the Indo-Pacific, commonly found in coral reefs and shallow lagoons. Easily identifiable by its vibrant yellow body and occasionally subtle blue markings around its face and fins. Known for being hardy, active, and moderately territorial; suitable...
Blue Tang
Horned Bannerfish
Whitetail Damselfish
Green Chromis
Copperband Butterflyfish
Latticed Butterflyfish
Meyer’s Butterflyfish
Lined Butterflyfish
Collare Butterflyfish
Eastern Triangle Butterflyfish
Peacock Grouper
Lyretail Hogfish
Orange Shoulder Tang
Atlantic Blue Tang
Yellow Tang
Singular Bannerfish
Yellow Longnose Butterflyfish
Three-Spot Damselfish
Yellowtail Blue Damselfish
Tinker’s Butterflyfish
Raccoon Butterflyfish
Cinnamon Clownfish
Whitecheek Tang
Indian Ocean Sailfin Tang
Goldbelly Damselfish
Overview Native to the Indo-Pacific, frequently found in shallow lagoons and coral-rich reefs. Characterized by its striking metallic blue body with a bright golden-yellow belly. Known for being hardy, active, and somewhat territorial; popular among marine hobbyists....
Longnose Filefish
Pennant Bannerfish
Kole Tang
Black Bar Chromis
Pacific Double-Saddle Butterflyfish
Fourspot Butterflyfish
Merten’s Butterflyfish
Orangeface Butterflyfish
Four-Eyed Butterflyfish
Blacktail Butterflyfish
Half Black Angelfish
Indian Ocean Mimic Tang
Lined Surgeonfish
Achilles Tang
Tobacco Basslet
Red Sea bannerfish
White-streaked Grouper
Reticulated Damselfish
Pearlscale Butterflyfish
Mirror Butterflyfish
Saddleback Butterflyfish
Tomato Clownfish
Sergeant Major
Lyretail Grouper
Allen’s Damselfish
Overview Native to the Indo-Pacific, often found in coral reefs and shallow lagoons. Distinctively bright metallic blue body with vibrant yellow anal and tail fins. Known for its active, playful behavior and striking appearance. Hardy and suitable for beginner and...
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....
Big Longnose Butterflyfish
Humpback Grouper
Blue Chromis
Melon Butterflyfish
Ornate Butterflyfish
Blackback Butterflyfish
Klein’s Butterflyfish
Burgess’ Butterflyfish
Bluelined Hind
Herald’s Angelfish
Convict Tang
Powder Blue Surgeonfish
Azure Damselfish
Schooling Bannerfish
Speckled Blue Grouper
Fiji Blue Devil Damselfish
Vagabond Butterflyfish
Rainford’s Butterflyfish
Threadfin Butterflyfish
Saddleback Clownfish
Purple Tang
Princess Damselfish
Overview Native to the Indo-Pacific, commonly found in coral-rich lagoons and outer reef slopes. Small, vibrant fish with a striking combination of electric blue and purple hues, often with subtle spots or lines on the body. Hardy and active, making it a popular...
Jewel Damselfish
Overview Found in the Indo-Pacific region, especially around coral reefs, lagoons, and reef flats. Displays an iridescent blue body with jewel-like spots, which become more pronounced under reef lighting. Territorial and bold, especially as it matures, making it...
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...