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.

Sargassum Triggerfish

Barhead Spinefoot

Rectangle Triggerfish

Zebra Dartfish

Smith’s Fangblenny

Goldspot Blenny

Red Sea Mimic Blenny

Spotted Hawkfish

Queen Triggerfish

Blue Throat Triggerfish

Halfmoon Triggerfish

Foxface Rabbitfish

One Spot Foxface Rabbitfish

Magnificent Rabbitfish

Orange-Spotted Spinefoot

Coral Rabbitfish

Lawnmower Blenny

Blackbelly Triggerfish

Arabian Picasso Triggerfish

Picasso Triggerfish

Longnose Hawkfish

Flame Hawkfish

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...

Helfrich’s Firefish

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...