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Red Rili Shrimp
Neocaridina davidi
📍 Taiwan (captive-bred color variant of wild Chinese species)
Red Rili Shrimp are a striking color morph of Neocaridina davidi, featuring bold red and white banding that makes them popular in planted and community tanks. These hardy, peaceful shrimp are excellent for beginners and thrive in established freshwater aquariums with plenty of biofilm and vegetation. They are prolific breeders in freshwater and will quickly establish a thriving colony.
Care Guide
Diet
Red Rili Shrimp are detritivores that primarily feed on biofilm, algae, and decaying plant matter in an established tank. Supplement with high-quality shrimp pellets, algae wafers, and blanched vegetables (zucchini, spinach, carrot) 2-3 times weekly. A mature, well-planted tank with adequate biofilm is essential for their long-term health.
Behavior
Red Rili Shrimp are active foragers that spend most of their time on the substrate and plants searching for food and biofilm. They are social and do best in groups of 10 or more, where they exhibit natural grazing and molting behaviors. Molting occurs every 4-6 weeks; provide plenty of hiding spots and do not disturb them during this vulnerable period.
Breeding
Red Rili Shrimp breed readily in freshwater without any special conditions, making them ideal for colony establishment. Females produce 20-30 shrimplets every 4-6 weeks that are fully-formed miniatures, requiring no larval stage. In a stable, mature tank with adequate food and hiding spaces, populations will naturally increase.
Tank Mates
Same peaceful temperament; compatible colony mates
Non-aggressive; can cohabitate without issues
Small, peaceful algae eater; no predatory threat
Tiny, non-aggressive fish; may eat shrimplets if present
Generally peaceful but monitor for aggression toward shrimp
Peaceful algae eater; no competition or predation
Common Diseases
Molting Issues / Stuck Molt
Shrimp unable to shed exoskeleton; appears lethargic; may die if unable to escape old shell
Ensure adequate calcium and minerals (GH 4-8); provide soft plants and moss for assistance; maintain stable water parameters; do not disturb molting shrimp
Copper Toxicity
Lethargy, loss of color, gasping, sudden death in colony
Copper is highly toxic to shrimp; avoid all copper-based medications and fertilizers; use only shrimp-safe products; perform water change if exposure suspected
Bacterial Infection / Shell Rot
Discoloration or pitting on shell; soft spots; cloudy appearance
Improve water quality and tank maintenance; increase water changes; ensure adequate calcium; remove affected individuals if severely compromised
Parasitic Infection (Vorticella / Fungus)
White fuzzy coating on body or appendages; lethargy; difficulty molting
Improve water quality and oxygenation; increase water changes; use salt baths (1 tsp per gallon for 10-15 minutes) as a last resort; ensure tank is well-established with biofilm
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Quick Facts
- diet
- omnivore/detritivore - biofilm, algae, decaying plant matter, blanched vegetables
- lifespan
- 1-3 years
- max size
- 4 cm (1.5 in)
- tank size
- 5 gallons minimum (10+ gallons recommended for colony)
- temperament
- peaceful
Water it likes
- ph
- 6.5-8.0
- ammonia
- 0 ppm
- nitrate
- <20 ppm
- hardness
- 4-8 dGH
- temperature
- 64–82°F (18–28°C)