How to Tell Male and Female Neocaridina Shrimp Apart

Compare mature animals

Females are often larger and may have a broader, curved abdomen that protects eggs. Males are commonly slimmer, with a straighter underside.

A visible saddle or eggs beneath the abdomen is a strong clue for a female. Young shrimp can be difficult to sex before adult features develop.

Avoid overconfidence

Body size varies with age, nutrition, and line, and lighting can alter how colors appear. Do not assume every brightly colored shrimp is female or every pale one is male.

If the goal is breeding, start with a group from one healthy source rather than trying to identify every juvenile. Allow the colony time to mature.

For your own tank

Compare several adult animals rather than making a decision from one juvenile. Body shape becomes clearer as shrimp mature, and a visible egg mass is a strong indicator of a female. Give the colony time to grow before buying more solely to balance sexes.