tropical fish

noun

: any of various small usually showy fishes of tropical origin often kept in a tropical aquarium

Examples of tropical fish in a Sentence

Recent Examples on the Web
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The barrier island’s largest development in 50 years features a private beach, multiple pools (including an adults-only one with butler services), a winding river, and a saltwater lagoon where guests can swim with tropical fish and rays. Tara Massouleh McCay, Southern Living, 12 Mar. 2026 Though the famous Tropic of Cancer beach on Little Exuma is easily accessible by car for travelers staying on the archipelago’s two largest islands, travelers should plan a boat day to the cays to visit spots like Compass Cay, where friendly nurse sharks stalk tropical fish near natural tide pools. Carley Rojas Avila, Travel + Leisure, 3 Mar. 2026 Visitors can explore an underwater world that includes an ocean tunnel, sea turtle rescue center, an interactive touch pool, jellyfish, colorful tropical fish, seahorse displays and more. Alyson Rodriguez, Dallas Morning News, 25 Feb. 2026 Betta fish are tropical fish, so experts recommend having a heater to regulate the temperature between mid-70 and low-80 degrees Fahrenheit to mimic that environment. Sierra Leone Starks, Parents, 10 Feb. 2026 See All Example Sentences for tropical fish

Word History

First Known Use

1931, in the meaning defined above

Time Traveler
The first known use of tropical fish was in 1931

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Cite this Entry

“Tropical fish.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tropical%20fish. Accessed 17 Mar. 2026.

Kids Definition

tropical fish

noun
: any of various small usually brightly colored fishes that occur wild especially in the tropics and are often kept in tropical aquariums

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