
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.
Tobacco Basslet
Goldspot Blenny
Red Sea bannerfish
Yellow Longnose Butterflyfish
Spotted Hawkfish
Vagabond Butterflyfish
Rainford’s Butterflyfish
Threadfin Butterflyfish
Lawnmower Blenny
Majestic Angelfish
Overview Native to the Indo-Pacific region, commonly inhabiting coral reefs, lagoons, and reef slopes. Known as the Majestic Angelfish, recognized for its striking blue and yellow-orange coloration with intricate patterns. Juveniles have distinct black bodies with...
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...
King Angelfish
Swallowtail Angelfish
Midas Blenny
Redbarred Hawkfish
Black Velvet Angelfish
Golden Butterflyfish
Eightband Butterflyfish
Oval Butterflyfish
Saddleback Butterflyfish
Bennett’s Butterflyfish
Coral Grouper
Potter’s Angelfish
Eibli Angelfish
Cherub Angelfish
Three-spot Angelfish
Regal Angelfish
Rock Beauty
Schooling Bannerfish
White-streaked Grouper
Vermiculated Angelfish
Teardrop Butterflyfish
Spotband Butterflyfish
Whitetail Pygmy Angelfish
Cortez Angelfish
Overview Native to the Eastern Pacific, primarily found along rocky reefs from the Gulf of California to Peru. Notable for its striking coloration, including a dark blue body with vertical yellow stripes and blue highlights on fins. Known for its bold and inquisitive...
Emperor Angelfish
Overview Native to the Indo-Pacific region, commonly found in coral-rich lagoons and seaward reefs. Famous for its striking coloration; juveniles have distinct blue, white, and black circular patterns, adults develop vivid yellow and blue stripes with a distinctive...
Multi-barred Angelfish
Blue Angelfish
Lamarck’s Angelfish
Bicolor Blenny
Coral Hawkfish
Blue-spotted Angelfish
Latticed Butterflyfish
Meyer’s Butterflyfish
Lined Butterflyfish
Collare Butterflyfish
Eastern Triangle Butterflyfish
Peacock Grouper
Flame Angelfish
Coral Beauty Angelfish
African Flameback Angelfish
Yellowbar Angelfish
Overview Native to the Red Sea, Persian Gulf, and northwestern Indian Ocean, typically found around coral reefs and rocky outcrops. Distinguished by its deep blue body, vibrant yellow vertical bar in the center, and blue-margined fins and tail. Juveniles display black...
Queen Angelfish
Pyramid Butterflyfish
Speckled Blue Grouper
Scribbled Angelfish
Tinker’s Butterflyfish
Raccoon Butterflyfish
Rusty Angelfish
Koran Angelfish
Overview Native to the Indo-Pacific region, commonly found around coral reefs and lagoon environments. Known for its vibrant blue-green body with distinctive semicircular patterns and intricate blue markings on the fins. Juveniles have bold blue, black, and white...
Arabian Angelfish
Overview Native to the Red Sea and western Indian Ocean, commonly inhabiting coral reefs and rocky reef slopes. Recognizable by its striking coloration: a deep blue-black body with a bold vertical yellow band and yellow tail fin. Juveniles display a unique coloration...
Longnose Hawkfish
Horned Bannerfish
Big Longnose Butterflyfish
Swallowtail Hawkfish
Falco Hawkfish
Pacific Double-Saddle Butterflyfish
Fourspot Butterflyfish
Merten’s Butterflyfish
Orangeface Butterflyfish
Four-Eyed Butterflyfish
Blacktail Butterflyfish
Half Black Angelfish
Herald’s Angelfish
Bicolor Angelfish
Lyretail Hogfish
Smith’s Fangblenny
Singular Bannerfish
Watanabe’s Angelfish
Red Sea Mimic Blenny
Pearlscale Butterflyfish
Mirror Butterflyfish
Saddleback Butterflyfish
Lyretail Grouper
French Angelfish
Overview Native to the Western Atlantic, found in coral reefs from Florida, the Caribbean, and Brazil. Recognized for its dark body with golden-yellow scale edges, giving it a distinctive net-like appearance. Juveniles exhibit black bodies with vibrant yellow vertical...
Blue Ring Angelfish
Overview Native to the Indo-Pacific region, commonly found around coral-rich reefs and rocky structures. Identifiable by its beautiful blue-ringed pattern on a tan or yellowish body, with vibrant blue highlights around the fins and face. Adults and juveniles differ...