Blue Pearl Shrimp Breeding Guide
Breeding Blue Pearl Neocaridina davidi: sexing, conditioning, berried females with 20-30 eggs, and culling to hold the pale translucent blue line.
Overview
Blue Pearl is a translucent pale-blue morph of Neocaridina davidi and one of the earlier blue lines. It breeds like every Neocaridina: easy reproduction with a sexed pair and stable water, external egg incubation by the female, and direct development of young with no larval stage.
Sexing
Females are larger, more strongly tinted, and have a broad curved tail for holding eggs; males are smaller and more transparent. Because the body is translucent, the maturing egg saddle behind the head is often relatively easy to see before eggs pass to the swimmerets.
Conditioning
Keep parameters steady in the species range: temperature about 22-26 °C and pH near 6.5-8 with stable hardness. As detritivores the shrimp graze biofilm, algae and detritus and eat their molts, so a mature planted tank supplies most of the diet with light supplementation.
Breeding Setup
A species-only tank with gentle filtration and a dark background helps the pale blue show, and moss provides shrimplet cover. The blue tint is a recessive selectively bred trait. Crossing different Neocaridina davidi morphs reverts the young to brown wild-type, so Blue Pearl must be kept apart from other color lines.
Spawning & Berried Females
Mating follows a molt, with pheromone signaling and external fertilization as eggs move to the pleopods. A berried female carries roughly 20-30 eggs and fans them under the tail for about two to three weeks until hatching. Steady parameters reduce the chance of a dropped clutch.
Shrimplet Care
Shrimplets hatch at about 1 mm as miniature adults and graze biofilm immediately. They mature in roughly two to three months and live one to two years. Because the color is naturally pale, holding the line depends on grouping shrimp and culling the most colorless or off-tint young.
Common Challenges
The pale blue varies and some young appear nearly clear; weaker individuals are removed from breeding stock. The main risks are mixing with other morphs, which reverts color toward wild-type, and unstable water or copper exposure, which stress berried females and harm eggs.