Brotia herculea, commonly known as the White Hercules Snail or Giant Tower Cap Snail:

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Species Overview

• Scientific Name: Brotia herculea (Gould, 1846)
• Common Names: White Hercules Snail, Giant Tower Cap Snail
• Family: Pachychilidae
• Origin: Rivers in Myanmar and Thailand

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Size & Lifespan

• Adult Size: Up to 10 cm (3.9 inches)
• Lifespan: Several years with proper care

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Water Parameters

• Temperature: 22–28°C (72–82°F)
• pH: 6.5–7.5
• Hardness: Moderate to hard water
• Tank Size: Minimum 40 liters (10 gallons); ideally 75 liters or more for adults

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Appearance

• Thick, elongated spiral shell tapering to a point, resembling a unicorn horn
• Shell has 6–8 whorls with fine lines and often a darker tip
• Coloration is creamy or off-white; the “white” appearance is often enhanced by polishing

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Behavior & Compatibility

• Peaceful and slow-moving
• Compatible with most fish and invertebrates
• Not aggressive but not plant-safe if underfed
• Not effective algae eaters; may nibble on plants if hungry

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Diet

• Scavenger: Eats detritus, leftover fish food, and algae
• Best fed with:
  • Sinking pellets
  • Algae wafers
  • Blanched vegetables
• Avoid starvation to prevent plant damage

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Breeding

• Livebearer: Gives birth to tiny young (~1–2 mm)
• Breeds only 2–3 times per year, reducing risk of overpopulation
• Males and females are not distinguishable externally

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Tank Setup Tips

• Substrate: Fine sand with crushed coral or aragonite to support shell health
• Avoid acidic water to prevent shell erosion
• Provide driftwood, leaf litter, and shaded areas
• Use a secure lid—snails may climb out
• Maintain stable water conditions and moderate flow

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