Shrimp eggs disappear: hatched or lost?

Disappearing eggs may have hatched or been lost. First look for small juveniles on quiet surfaces and record what you actually saw: released eggs, an empty abdomen, or simply a female you can no longer identify. One observation cannot establish whether fertilisation, development or water quality was responsible.

Make the next observation useful

• Record when eggs first appeared, whether they disappeared gradually and whether you can follow the same female. Use photographs without repeatedly catching her.
• Check recent handling, transport, maintenance, temperature, filter operation and additions. Test water when behaviour changes or animals die.
• Observe the other animals and juveniles that may be hiding. A heavily planted tank does not allow a complete count.
• Record repeated losses by female or group. This pattern is more useful for further advice than the label “failed first brood”.

Young age, stress or nonviable eggs are possible questions to investigate, not causes established by disappearance alone. Colour, whitening or a photograph also cannot establish a fungal diagnosis without further investigation. Do not add treatment solely because a clutch disappears.

When to investigate further

For deaths or sudden abnormal behaviour, use the problem-solving guide. For recurring clutch losses without a clear environmental explanation, take observations and origin records to suitable expert help. Inbreeding can affect reproduction, but a laboratory finding does not make your case automatically genetic. Maintain suitable conditions and follow normal berried-female care.

Sources and scope

• UF/IFAS: Cherry shrimp, Neocaridina davidi
• Tropea, Marciano & López Greco (2022): Brothers are better than nothing
• LICG: Zoetwatergarnaal

The biological description applies to Neocaridina davidi. LICG provides general husbandry guidance; our check sequence is an editorial application, not a breeding experiment or established diagnosis. Bee, tiger, Cardinal and species with larvae also require their own species guidance. Tropea and colleagues studied related matings in a laboratory; this does not identify the cause of a lost aquarium clutch.