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Blue Pearl Shrimp (Neocaridina cf. zhangjiajiensis var. blue) | Home Fish Aquarium Guide

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Blue Pearl Shrimp (Neocaridina cf. zhangjiajiensis var. blue)

The Blue Pearl Shrimp is a color variant of the Neocaridina family of freshwater shrimp. It is closely related to the red cherry and yellow shrimps from the Neocaridina family.

The blue pearl shrimp is a selectively bred shrimp available to aquarists since 2007. It is an omnivorous though mostly vegetarian tropical freshwater dwarf shrimp closely related to (i.e., same species as) the snowball shrimp, and the cherry shrimp. It typically grows to between 2.5–3.0 centimetres (0.98–1.2 in) in length, with females often slightly larger than same-aged males, and can live as long as two years in an ideal environment. The blue pearl shrimp is a color morph: as its name suggests, the blue pearl shrimp exhibits a faint bluish body pigment. Like all color morphs, the blue pearl shrimp may cross breed with other shrimps of its own species typically resulting in offspring without any interesting color qualities. They are non-aggressive, and are easily bred in a stable clean aquarium.


Although the original members of this landlocked shrimp family are all native to western Russia, Korea, Japan, China, Taiwan, and Vietnam this variant has been selectively bred in captivity by the German Ulf Gottschalk and therefore has no “natural” range or distribution.

Ecology and reproduction

Breeding between adult shrimp takes place approximately once every two months. Females carry a set of brownish eggs within their swimmerettes for approximately 20–30 days before these eggs hatch into miniature versions of their parents (no member of this shrimp family has a larval stage). Full maturity is achieved in 3–5 months depending on temperature—no breeding will take place at all if water temperatures are unusually low.

The blue pearl shrimp prefers slightly alkaline (pH of 7.2) to medium-hard water but are like other Neocaridina species in that they are easily adaptable to various conditions so long as the shift from one condition to another is sufficiently slow. Comfortable living temperatures can range from 20 °C (68 °F) to 30 °C (86 °F). All shrimp find copper extremely toxic, even in small quantities. The blue pearl shrimp is no exception.

As omnivores and as scavengers, they will eat unclaimed foodstuffs, algae, and decomposing animals. Typical feeding pattern is by grazing rather than seeking out food sources.

Source: Wikipedia.

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    April 12, 2011 - 5:19 PM