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

Red Lionfish

Russell’s Lionfish

Antennata Lionfish

Violet Soldierfish

Zebra Lionfish

Dwarf Lionfish

Fu Manchu Lionfish

Foxface Rabbitfish

One Spot Foxface Rabbitfish

Magnificent Rabbitfish

Orange-Spotted Spinefoot

Coral Rabbitfish

Radiata Lionfish

Mombasa Lionfish

Maroon Clownfish

Overview Native to the Indo-Pacific, commonly inhabiting coral reefs and lagoon areas. Recognizable by its deep maroon coloration with distinctive white or yellowish vertical bands. Known for bold personality, territorial nature, and striking appearance. Popular among...

Longnose Filefish

Twospot Soldierfish

Overview Native to the Indo-Pacific region, often found in lagoons and seaward reefs. Recognized by its vibrant red or orange body, distinctive black tips on its dorsal fin, and large eyes. Nocturnal species, typically seeking shelter in caves or crevices during the...