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Cherry Shrimp (Neocaridina davidi)

Cherry shrimp are the gateway invertebrate: hardy in ordinary tap-water parameters, constantly grazing biofilm and algae, and able to turn ten shrimp into a few hundred within a year in a stable, predator-free tank. Stability matters more than any specific number — they tolerate a wide range but punish sudden swings, especially during molting. Blue velvet, yellow goldenback, and black 'crystal' Neocaridina are color lines of the same species; keep one color per tank or they interbreed back to wild brown.

Care specifications

TypeShrimp
DifficultyEasy
Max size1.5 in
Lifespan1–2 years
Temperature65–78 °F
pH6.8–8
General hardness6–12 dGH
Calcium needsMedium
Minimum tank size5 gallons
DietBiofilm, Algae, Detritus, Shrimp pellets, Blanched vegetables
RolesAlgae eater, Scavenger, Showpiece
Plant safeYes
Betta compatibleWith caution
Breeds in freshwaterYes
Population growthFast
TemperamentPeaceful

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Cherry Shrimp

Red Cherry Shrimp

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Frequently asked questions

Will my betta or community fish eat cherry shrimp?

Assume yes for shrimplets and maybe for adults. Babies are fish food to anything with a mouth, and many bettas hunt adults too. In a heavily planted tank with moss and cover a colony can still grow faster than fish eat it; in a bare tank the shrimp lose.

Why did my shrimp die after a molt, with a white ring behind its head?

The 'white ring of death' is a failed molt, and it almost always traces to water chemistry — usually GH that is too low for proper shell formation, or a large sudden water change that triggered a premature molt. Keep GH around 6–8 dGH and change water in small, regular amounts.

How fast do cherry shrimp multiply?

Fast once they settle in. A female carries 20–30 eggs for about a month, breeds again soon after, and offspring mature in roughly 75 days — so a starter group of ten can be hundreds within a year. There is no pest risk; the colony self-limits at the tank's food supply.

Planting the same tank?

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