
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
Marcos’ Wrasse
Pyramid Butterflyfish
Yellow Longnose Butterflyfish
Clown Wrasse
Vagabond Butterflyfish
Rainford’s Butterflyfish
Threadfin Butterflyfish
Twospot Cardinalfish
Lyretail Grouper
Orbiculate Cardinalfish
Helfrich’s Firefish
Hawaiian Cleaner Wrasse
Overview Found in the Indo-Pacific region. Known for their role in cleaning other fish by removing parasites. They have a slender body and a distinctive swimming pattern. Cleaner wrasses establish cleaning stations on the reef. Feeding They are primarily carnivores....
Pennant Bannerfish
Checkerboard Wrasse
Big Longnose Butterflyfish
Lubbock’s Fairy Wrasse
Pacific Double-Saddle Butterflyfish
Fourspot Butterflyfish
Merten’s Butterflyfish
Orangeface Butterflyfish
Four-Eyed Butterflyfish
Blacktail Butterflyfish
Split-Level Hogfish
Lyretail Hogfish
Zebra Dartfish
Singular Bannerfish
Zigzag Wrasse
White-streaked Grouper
Solar Fairy Wrasse
Teardrop Butterflyfish
Spotband Butterflyfish
Spanish Hogfish
Threadfin Cardinalfish
Moon Wrasse
Pajama Cardinalfish
Decorated Dartfish
Overview Found in the Indo-Pacific region. Known for their elegant appearance with elongated dorsal fin rays and vibrant coloration, often including shades of purple, red, and white. They have a slender body and a peaceful demeanor. Decorated dartfish are often seen...
Cleaner Wrasse
Blackeye Thicklip Wrasse
Yellow Coris Wrasse
Banded Pipefish
Harlequin Tuskfish
Melon Butterflyfish
Ornate Butterflyfish
Blackback Butterflyfish
Klein’s Butterflyfish
Burgess’ Butterflyfish
Bluelined Hind
Blackfin Hogfish
Orange-Lined Cardinalfish
Fourline Wrasse
Red Sea bannerfish
Tail-spot wrasse
Speckled Blue Grouper
Redfin Fairy Wrasse
Tinker’s Butterflyfish
Raccoon Butterflyfish
Spotfin Hogfish
Spotted Wrasse
Sixbar Wrasse
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...
Peacock Wrasse
Bicolor Cleaner Wrasse
Dusky Wrasse
Pastel Green Wrasse
Humpback Grouper
Copperband Butterflyfish
Golden Butterflyfish
Eightband Butterflyfish
Oval Butterflyfish
Saddleback Butterflyfish
Bennett’s Butterflyfish
Coral Grouper
Diana’s Hogfish
Ochre-striped Cardinalfish
Purple Tilefish
Schooling Bannerfish
Sixline Soapfish
Yellowtail Coris Wrasse
Pearlscale Butterflyfish
Mirror Butterflyfish
Saddleback Butterflyfish
Seale’s Cardinalfish
Peacock Wrasse
Belted Wrasse
Firefish Goby
Overview Found in the Indo-Pacific region. Known for their striking appearance with elongated dorsal and caudal fin rays, and vibrant coloration, typically red, white, and yellow. They have a slender body and a peaceful demeanor. Magnificent dartfish are often seen...