Caridina longidigita

Scientific name:

Caridina longidigita¹

Official common name: (accepted by ESA)

Unofficial synonyms:

Sulawesi Fan shrimp, Poso Blue shrimp, Pink Boxer shrimp


The species name longidigita (“long fingers”) is derived from Latin longus, which means ‘long’, and digitus, meaning ‘finger’. This refers to the unusually long setae that give the chelae the appearance of brush-like fans.


C. longidigita is a lacustrine species endemic to Lake Poso, Sulawesi, Indonesia; where it is widely distributed. It is not found in the connected rivers.¹

The image below show the distribution of the species within Lake Poso.¹


C. longidigita is found on hard substrate. Specifically, it can be found on gravel in depths of less than 3m and on boulders at greater depths.¹




C. longidigita shows a feeding behaviour unique amongst Caridina, making lateral sweeping movements with its chelipeds.¹


Due to the delicate nature of these shrimp, I recommend only experienced and skilled aquarists attempt to keep this species.




Reproduction takes place entirely in freshwater, and offspring immediately assume a benthic lifestyle.


  1. von Rintelen, K. & Cai, Y., (2009). Radiation of endemic species flocks in ancient lakes: systematic revision of the freshwater shrimp Caridina H. Milne Edwards, 1837 (Crustacea: Decapoda: Atyidae) from the ancient lakes Of Sulawesi, Indonesia, with the description of eight new species. Raffles Bulletin of Zoology57(2).


Chris Lukhaup



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