harlequin fish Directory References Images Discover The Seven Sacraments of the Roman Catholic church What Do Eggs Have to Do with Easter? Why Is Ireland Two Countries? Causes of the Great Depression 7 of the World’s Deadliest Shipwrecks Where Is “Old Zealand”? How Deadly Is Quicksand? Contents harlequin fish tropical fish Ask the Chatbot a Question Ask the Chatbot a Question Also known as: Rasbora heteromorpha Learn about this topic in these articles:description In rasbora…the most popular being the harlequin fish, or rasbora (R. heteromorpha), a reddish fish 4–5 cm (1.5–2 inches) long with a wedge-shaped black spot on each side.Read More