
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
Goldspot Blenny
Pyramid Butterflyfish
Red Sea Mimic Blenny
Tinker’s Butterflyfish
Raccoon Butterflyfish
Foxface Rabbitfish
Coral Rabbitfish
Longnose Filefish
Flashing Tilefish
Leopard Blenny
Pineapplefish
Golden Butterflyfish
Eightband Butterflyfish
Oval Butterflyfish
Saddleback Butterflyfish
Bennett’s Butterflyfish
Coral Grouper
Coral Beauty Angelfish
Tobacco Basslet
Singular Bannerfish
Yellow Longnose Butterflyfish
Pearlscale Butterflyfish
Mirror Butterflyfish
Saddleback Butterflyfish
One Spot Foxface Rabbitfish
Lawnmower Blenny
Goldspecs Jawfish
Overview Found in various marine environments worldwide. Known for their characteristic large mouths and burrowing behavior. They have elongated bodies and are often colorful. Jawfish are peaceful and have a distinctive behavior of building and inhabiting burrows....
Horned Bannerfish
Midas Blenny
Copperband Butterflyfish
Latticed Butterflyfish
Meyer’s Butterflyfish
Lined Butterflyfish
Collare Butterflyfish
Eastern Triangle Butterflyfish
Peacock Grouper
Yellowhead Jawfish
Overview Found in the western Atlantic Ocean, including the Caribbean Sea. Known for their bright yellow head and elongated body. They have a large mouth and are often seen hovering near their burrows. Yellowhead jawfish are peaceful and have a distinctive behavior of...
Red Sea bannerfish
White-streaked Grouper
Vagabond Butterflyfish
Rainford’s Butterflyfish
Threadfin Butterflyfish
Magnificent Rabbitfish
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...
Rosenblatt’s Jawfish
Pennant Bannerfish
Bicolor Blenny
Pacific Double-Saddle Butterflyfish
Fourspot Butterflyfish
Merten’s Butterflyfish
Orangeface Butterflyfish
Four-Eyed Butterflyfish
Blacktail Butterflyfish
Half Black Angelfish
Smith’s Fangblenny
Schooling Bannerfish
Speckled Blue Grouper
Teardrop Butterflyfish
Spotband Butterflyfish
Lyretail Grouper
Orange-Spotted Spinefoot
Convict Blenny
Overview Native to the Indo-Pacific region, typically inhabiting coral reefs and rocky crevices. Distinctive eel-like body with striking black and white horizontal stripes, resembling a "convict" pattern. Known for its unique burrowing and schooling behavior, often...