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Harlequin Sulawesi shrimp

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The Harlequin shrimp, Caridina woltereckae, was described in 2009. It is found only in Lake Towuti on the Indonesian island of Sulawesi, where it lives on rocky bottoms. Its red-and-white bands look like a candy cane.

It's listed as Critically Endangered on the IUCN Red List. Threats include collection for the aquarium trade, introduced flowerhorn cichlids, pollution and nickel mining. A look-alike, C. spongicola, is sometimes sold under the same name.

Even among Sulawesi shrimp it's hard to keep. It needs a mature, very stable tank with plenty of biofilm, and warm, alkaline water like the Cardinal Sulawesi shrimp.

Part of our Caridina shrimp: Crystal, Taiwan Bee & Pinto. Also: Crystal Red shrimp · Hinomaru Crystal Red shrimp · Mosura Crystal Red shrimp · Golden Bee shrimp · Boa shrimp · Galaxy Fishbone shrimp · Red Ruby Taiwan Bee shrimp · Tibee and Taitibee shrimp · Tangerine Tiger shrimp · Black Tiger shrimp · Blue Leg Poso shrimp · Yellow Goldflake shrimp · Crystal Black shrimp · Blue Bolt shrimp · Shadow Panda shrimp · King Kong shrimp · Wine Red shrimp · Galaxy Pinto shrimp · Orange Eye Blue Tiger shrimp · Cardinal Sulawesi shrimp.