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Saltwater Fish Species

Browse our saltwater fish species profiles, each with care requirements, tank size, diet and reef compatibility.

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.

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Bluestriped Fangblenny

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...

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Convict Blenny

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...

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Longfin Bannerfish

Longfin Bannerfish

Overview Native to the Indo-Pacific, ranging from the Red Sea to the central Pacific islands. Easily recognized by its elongated white dorsal fin resembling a banner, along with bold black and white stripes. Commonly mistaken for the Moorish idol due to its similar...

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