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Here’s a complete guide to the Red Rili Shrimp — a beautiful, eye-catching shrimp known for its semi-transparent body and striking red patterns. They're a popular choice for nano and planted aquariums.

🦐 Red Rili Shrimp Overview

• Scientific Name: Neocaridina davidi (color morph)

• Common Name: Red Rili Shrimp

• Family: Atyidae

• Origin: Selectively bred in captivity (derived from Red Cherry Shrimp)

• Type: Freshwater dwarf shrimp

📏 Physical Characteristics

• Size: 1.0–1.5 inches (2.5–3.8 cm)

• Coloration:

  • Transparent midsection with red coloring on the head and tail

  • Patterns vary between individuals (some more red than others)

• Sexual Dimorphism:

  • Females: Larger, more vibrant, visible saddle/eggs under abdomen

  • Males: Smaller, less colorful

🧬 Behavior and Temperament

• Temperament: Peaceful and social

• Activity: Active grazers, constantly foraging on surfaces

• Tank Level: All levels, but primarily substrate and hardscape

• Best Kept: In groups of 10+ for natural behavior and breeding

🐠 Tank Requirements

🍽️ Diet

• Type: Omnivorous scavenger

• Primary Foods:

  • Biofilm, algae, decaying plant matter

  • Shrimp-specific pellets or wafers

  • Blanched vegetables (zucchini, spinach, cucumber)

  • Occasional protein (bloodworms, fish food, once a week)

• Feeding Tip: Feed small amounts — overfeeding causes water issues

🐣 Breeding

• Difficulty: Easy under stable conditions

• Breeding Type: Egg layer (female carries eggs under her tail)

• Gestation: ~3–4 weeks

• Fry Care:

  • No special setup needed if no predators

  • Fry feed on biofilm and powdered shrimp food

✅ Tips for Success

• Stable water parameters are more important than exact numbers

• Use remineralized RO/DI water for more control (optional)

• Add leaf litter (e.g., Indian almond leaves) for tannins and biofilm

• Provide moss and hard surfaces for grazing and hiding

• Avoid copper (toxic to shrimp) in meds or plant fertilizers

🤝 Compatibility

Red Rili Shrimp are peaceful and best in shrimp-only or peaceful nano setups.

Good tankmates:

• Other Neocaridina varieties (if you don't mind interbreeding)

• Otocinclus

• Small snails (e.g., nerite, ramshorn)

• Small rasboras (like chili rasboras)

• Ember tetras

• Pygmy corydoras

Avoid:

• Any fish that can eat shrimp (bettas, cichlids, angelfish, gouramis)

• Aggressive or fast-feeding species

• Mixing with Caridina shrimp (different care requirements)

⚠️ Common Issues

• Molting problems: Usually due to lack of minerals or unstable water

• Shrimp deaths after water changes: Avoid large, sudden parameter shifts

• Predation: Even small fish may eat shrimplets

• Color loss: Can happen due to stress, poor water, or low-quality diet

🎯 Summary

The Red Rili Shrimp is a vibrant, easy-to-breed dwarf shrimp perfect for planted tanks. Their semi-transparent bodies and red highlights add elegance and motion to peaceful nano aquariums. With stable water, plenty of biofilm, and a shrimp-safe environment, they’ll thrive and multiply.

Would you like help setting up a Red Rili shrimp tank, a shrimp care checklist, or a shrimp breeding tracker?