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

Azure Damselfish

Barred Soapfish

Three-Spot Damselfish

Reticulated Damselfish

Fiji Blue Devil Damselfish

Talbot’s Damselfish

Yellowtail Blue Damselfish

Sergeant Major

Foxface Rabbitfish

One Spot Foxface Rabbitfish

Magnificent Rabbitfish

Orange-Spotted Spinefoot

Coral Rabbitfish

Goldbelly Damselfish

Overview Native to the Indo-Pacific, frequently found in shallow lagoons and coral-rich reefs. Characterized by its striking metallic blue body with a bright golden-yellow belly. Known for being hardy, active, and somewhat territorial; popular among marine hobbyists....

Allen’s Damselfish

Overview Native to the Indo-Pacific, often found in coral reefs and shallow lagoons. Distinctively bright metallic blue body with vibrant yellow anal and tail fins. Known for its active, playful behavior and striking appearance. Hardy and suitable for beginner and...