Blue Velvet Shrimp Breeding Guide
Breeding Blue Velvet Neocaridina davidi: sexing, conditioning, berried females holding 20-30 eggs, and culling to hold the solid medium-blue line.
Overview
Blue Velvet is a solid medium-blue morph of Neocaridina davidi, selected for clean blue without brown or rust patches. Its breeding follows the standard Neocaridina pattern: 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 uniformly blue, and have a broad curved tail for carrying eggs; males are smaller and paler. The maturing egg saddle behind the head can be harder to read against the blue body but is still detectable before eggs pass to the swimmerets.
Conditioning
Keep water steady in the species range: temperature about 22-26 °C and pH near 6.5-7.8 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 moss best supports the colony. The blue is a recessive selectively bred trait, and blue lines can show variable saturation. Crossing different Neocaridina davidi morphs reverts the young to brown wild-type, so Blue Velvet must be kept apart from red, yellow and other 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 risk 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. Holding the line means culling young that show rust, brown patches or weak blue so the cleanest, most uniform blues remain.
Common Challenges
Blue lines often produce some young with patchy or pale color that 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.