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.

Ward’s Sleeper Goby

The Golden Head Sleeper Goby

Twin-Spot Goby

Rectangle Triggerfish

Sharknose Goby

Yellow Clown Goby

Watanabe’s Angelfish

Barred Soapfish

Three-Spot Damselfish

Yellow Watchman Goby

Talbot’s Damselfish

Queen Triggerfish

Rainford’s Goby

Wheeler’s Shrimp Goby

Steinitz’s Shrimp Goby

Randall’s Shrimp Goby

Wide-Banded Shrimp Goby

Diamond Goby

Halfmoon Triggerfish

Blackray Shrimp Goby

Blackbelly Triggerfish

Picasso Triggerfish

Jewel Damselfish

Overview Found in the Indo-Pacific region, especially around coral reefs, lagoons, and reef flats. Displays an iridescent blue body with jewel-like spots, which become more pronounced under reef lighting. Territorial and bold, especially as it matures, making it...