
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.
Sargassum Triggerfish
Singular Bannerfish
Watanabe’s Angelfish
Teardrop Butterflyfish
Spotband Butterflyfish
Whitetail Pygmy Angelfish
Blackbelly Triggerfish
Gray Angelfish
Overview Native to the Western Atlantic, commonly found near coral reefs and rocky outcroppings in the Caribbean and Gulf of Mexico. Large angelfish with a dark gray body covered in lighter scale markings and a broad, crescent-shaped tail fin. Juveniles feature a...
Pennant Bannerfish
Five-lined Cardinalfish
Fourspot Butterflyfish
Klein’s Butterflyfish
Burgess’ Butterflyfish
Lemonpeel Angelfish
Cherub Angelfish
Ochre-striped Cardinalfish
Rectangle Triggerfish
Red Sea bannerfish
Yellow Longnose Butterflyfish
Tinker’s Butterflyfish
Raccoon Butterflyfish
Rusty Angelfish
Arabian Picasso Triggerfish
Stark’s Tilefish
Swallowtail Angelfish
Black Velvet Angelfish
Merten’s Butterflyfish
Saddleback Butterflyfish
Atlantic Spadefish
Eibli Angelfish
African Flameback Angelfish
Rock Beauty
Schooling Bannerfish
Pearlscale Butterflyfish
Mirror Butterflyfish
Saddleback Butterflyfish
Blue Throat Triggerfish
Picasso Triggerfish
King Angelfish
Lamarck’s Angelfish
Pacific Double-Saddle Butterflyfish
Blackback Butterflyfish
Collare Butterflyfish
Keyhole Angelfish
Bicolor Angelfish
Marine Betta
Queen Angelfish
Pyramid Butterflyfish
Vagabond Butterflyfish
Rainford’s Butterflyfish
Threadfin Butterflyfish
Halfmoon Triggerfish
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...