Bloody Mary Shrimp (Neocaridina davidi "Bloody Mary") are a stunning, deep red freshwater shrimp variety prized for their vivid coloration and ease of care.

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🧬 Species Overview

• Scientific Name: Neocaridina davidi "Bloody Mary"
• Common Names: Bloody Mary Shrimp, Red Neocaridina
• Size: Up to 1.5 inches (3.8 cm)
• Lifespan: 1.5–2 years
• Temperament: Peaceful and social
• Coloration: Deep, translucent red due to red body tissue under a clear exoskeleton 

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Tank Setup

• Minimum Tank Size: 5 gallons (10+ gallons preferred for stability)
• Substrate: Dark substrate enhances red coloration
• Plants & Decor: Java moss, Anubias, driftwood, leaf litter, and shrimp tubes for hiding
• Filtration: Sponge filter or gentle HOB filter with pre-filter sponge
• Lighting: Moderate (6–8 hours/day)
• Heater: Recommended if room temperature fluctuates

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Water Parameters

• Temperature: 65–80°F (18–27°C)
• pH: 6.2–7.8
• GH (General Hardness): 5–12 dGH
• KH (Carbonate Hardness): 3–5 dKH
• TDS: 150–300 ppm
• Ammonia/Nitrite: 0 ppm
• Nitrate: <20 ppm

Tip: Always use dechlorinated water and test regularly to maintain stable conditions.

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Feeding

• Diet: Omnivorous scavengers
  • Algae wafers
  • Shrimp pellets
  • Blanched vegetables (spinach, zucchini, kale)
  • Biofilm, detritus, and decaying plant matter
• Feeding Frequency: 1–2 times daily; remove uneaten food to prevent water pollution

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Breeding

• Ease: Very easy in stable tanks
• Maturity: 2–3 months
• Egg Incubation: 2–3 weeks
• Fry Care: Shrimplets are independent from birth; provide biofilm and hiding spots
• Note: Avoid mixing with other Neocaridina color strains to prevent color dilution

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Tank Mates

• Compatible: Other peaceful shrimp, snails, small fish like ember tetras, rasboras, and pygmy corydoras
• Avoid: Large or aggressive fish (e.g., cichlids, bettas) that may prey on shrimp

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Common Issues

• Molting Problems: Caused by poor water quality or calcium deficiency
• Copper Sensitivity: Avoid copper-based medications and check tap water
• Stress: Caused by overcrowding, poor water, or aggressive tank mates