
Assassin Snail (Clea helena) Natural Pest Control for Your Aquarium
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Tired of nuisance snails taking over your aquarium? Meet the Assassin Snail (Clea helena) – a striking freshwater snail known not only for its unique appearance but also for its incredible ability to control pest snail populations naturally. With their bold yellow-and-brown striped shells, these snails add visual interest while helping maintain a balanced aquarium ecosystem.
🐌 Key Features:
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Scientific Name: Clea helena
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Size: Grows up to 2–3 cm
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Temperament: Peaceful toward fish, but predatory to pest snails
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Lifespan: 2–3 years under proper conditions
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Diet: Feeds primarily on other snails (pond, ramshorn, bladder snails) and will also consume leftover fish food
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Behavior: Slow-moving, fascinating to watch, and highly effective as a natural snail population controller
🌿 Tank Requirements:
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Tank Size: Minimum 20 litres
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Water Parameters:
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Temperature: 22–28°C
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pH: 7.0–8.0 (prefers neutral to slightly alkaline)
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Medium to hard water is ideal
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Substrate: Sand or fine gravel where they can burrow
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Environment: Provide hiding spots and a stable food source. Compatible with most community fish but avoid keeping them with other valuable snails you wish to keep.
✅ Why Choose Assassin Snails?
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Natural pest control – keeps nuisance snail populations in check
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Hardy and low maintenance – easy to care for, perfect for beginners
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Peaceful with fish and shrimp – only preys on snails, not other tank inhabitants
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Unique appearance – their striped shells make them a beautiful addition to any aquarium
💡 Care Tip: Assassin Snails reproduce slowly (unlike pest snails), so you don’t have to worry about overpopulation. They do best in tanks where pest snails are present or when supplemented with protein-rich sinking foods.
✨ Ideal for aquarists looking to control unwanted snails while adding an intriguing species to their tank!