
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.
Barhead Spinefoot
Redcoat Squirrelfish
Fourline Wrasse
Marcos’ Wrasse
Rock Beauty
Queen Angelfish
Singular Bannerfish
Red Sea bannerfish
Schooling Bannerfish
Pyramid Butterflyfish
Zigzag Wrasse
Tail-spot wrasse
Sixline Soapfish
Watanabe’s Angelfish
Yellow Longnose Butterflyfish
Yellowtail Coris Wrasse
Pearlscale Butterflyfish
Vagabond Butterflyfish
Teardrop Butterflyfish
Tinker’s Butterflyfish
Mirror Butterflyfish
Rainford’s Butterflyfish
Spotband Butterflyfish
Raccoon Butterflyfish
Saddleback Butterflyfish
Threadfin Butterflyfish
Whitetail Pygmy Angelfish
Rusty Angelfish
Spanish Hogfish
Spotfin Hogfish
Peacock Wrasse
Moon Wrasse
Sixbar Wrasse
Belted Wrasse
Foxface Rabbitfish
One Spot Foxface Rabbitfish
Magnificent Rabbitfish
Orange-Spotted Spinefoot
Coral Rabbitfish
Hawaiian Squirrelfish
Crown Squirrelfish
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...
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...
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...