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Species profile

Blue Diamond Rili Shrimp

Neocaridina davidi

Common names: Blue Diamond Rili Shrimp

Pattern varietyNeocaridina Shrimp
Blue Diamond Rili Shrimp (Neocaridina davidi)

Adult size

Up to 4 cm

Typical adult length 3–4 cm.

Up to 4 cm

Countries of origin

  • See all stock from China
  • See all stock from South Korea
  • See all stock from Taiwan
  • See all stock from Vietnam

Good fit for your tank?

Good fit for

  • Mature planted aquarium setups
  • Beginner shrimp keepers
  • Peaceful nano aquariums
  • Breeding colonies

Think carefully if

  • The aquarium contains shrimp-eating fish
  • The tank is newly cycled
  • You want to preserve another Neocaridina colour line
  • Water conditions change frequently

A blue patterned Neocaridina davidi trade morph combining darker pigmentation with rili-style translucent areas.

Appearance and Identification

Aquarium-trade blue rili-pattern morph with darker blue pigmented areas and reduced or translucent sections; exact pattern varies by lineage.

Trade name is not a formal taxonomic designation. Confirm that the intended stock is a Blue Diamond Rili line and document breeder lineage because similar blue rili names may be used inconsistently.

Females are generally larger and have a broader abdomen used to carry eggs.

Tank Requirements

Suggested filter
About 80–100 litres an hour
Suggested heater
About 25–50 W for this tank
Minimum tank volume
20 litres
Minimum tank length
30 cm
Minimum group size
6
Recommended group size
10
Activity level
Moderate
Flow preference
Variable
Planting preference
Heavily planted
Hiding places
Yes
Jumping risk
Low

Use a mature, stable aquarium with biofilm, plant cover, protected filter intakes, and gentle flow. These shrimp are hardy, but new tanks, copper in water or medication, and sudden changes are the usual causes of loss.

Behaviour and Tankmates

Peaceful and continuously active as a surface grazer.

Not a schooling species, but normally kept as a colony.

Not normally territorial.

Small fish may consume shrimplets.

Check tankmates for this species

Water Parameters

Temperature
18–26 °C
pH
6.5–8
GH
6–12
KH
2–8
TDS
150–300
Stability importance
Very important

Neutral to slightly alkaline, moderately hard water suits these shrimp. Keep GH and KH within range to support moulting, and avoid sudden changes.

Parameter caveat
Stable conditions and careful acclimation matter more than repeatedly adjusting water to chase exact values.

Feeding

Diet types
Aufwuchs Grazer, Detritivore, Omnivore
Feeding frequency
Daily
Preferred foods
  • Mature biofilmPrimary grazing resource.
  • Soft algae growthGrazed from aquarium surfaces.
  • Leaf litterProvides grazing surface and decomposing material.
  • Prepared shrimp foodFeed sparingly.

An opportunistic grazer and detritivore consuming biofilm, algae, decomposing plant material, leaf litter, microorganisms, and other organic material.

Avoid leaving excess food in the aquarium.

Breeding

Breeding type
Direct Developer
Breeding difficulty
Very easy
Breeding temperature
22 °C
Breeding pH
7.2
Brood or egg count
Approximately 43–60 eggs
Incubation
18 days
Parental care
Maternal care
Baby foods
  • Mature biofilmContinuous food for hatchlings.
  • Fine powdered shrimp foodUse sparingly.

Females carry eggs beneath the abdomen until hatching. Development is direct, and hatchlings emerge as miniature shrimp.

Habitat and Origin

Geographic origin
Asia, China, South Korea, Taiwan, Vietnam
Natural habitat
Slow River
Aquarium contexts
Freshwater Community, Nano Aquarium, Planted Tank, Shrimp Tank
Audience level
Beginner

Classification

Profile type
Pattern variety
Genus
Neocaridina
Family
Atyidae
Species group
Neocaridina Shrimp
Previous scientific names
Neocaridina heteropoda, Historical synonym; still appears in older aquarium-trade material., Neocaridina denticulata sinensis, Historical synonym used in older literature and aquarium references., Caridina davidi, Historical taxonomic combination.

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