🌿 Elite Pest Control & Plant-Safe Carnivorous Nature
The Assassin Snail is a true predatory specialist. Armed with a specialized proboscis, it hunts down and consumes smaller nuisance snails, clean-up after organic debris, and leaves your aquarium glass free of unsightly pest outbreaks.
Unlike many chemical treatments that can shock your ecosystem, Clea helena provides a safe, 100% natural balance. They are completely safe for live aquarium plants, as their carnivorous diet prevents them from feeding on vegetation. When pest snails are cleared, they will readily transition to consuming leftover fish flakes, sinking pellets, and high-protein wafer foods. Furthermore, while they can breed in freshwater, they do so very slowly (laying single eggs), meaning they will never become a pest outbreak themselves.
🌡️ Invertebrate Specifications & Water Parameters
Parameter | Specification | Technical Notes |
Scientific Name | Clea helena | Authentic, high-grade species (Syn: Anentome helena) |
Common Names | Assassin Snail, Snail-Eating Snail | High-traffic search terms universally used by buyers |
Maximum Size | 0.8 – 1.0 inch (2.0 – 2.5 cm) | Compact size allows them to burrow and hunt through small crevices |
Diet | Carnivore / Scavenger | Preys on pest snails; accepts high-protein pellets and frozen foods |
Behavior | Peaceful to Fish & Shrimp | Aggressive only toward other snail species; safe for community tanks |
🛠️ Lighting, Temperature & Maintenance Guide
Lighting Requirements: Highly Adaptable. Assassin Snails do not have specific lighting requirements. They spent a fair amount of time hunting along the substrate or partially burrowed, making them perfectly suited for low-tech or high-intensity setups alike.
Temperature Parameters: Prefers a stable tropical climate within the range of 22°C – 26°C (72°F – 79°F). Avoid sudden environmental drops to maintain active hunting behavior.
Substrate & Burrowing Habit: Thrives best in aquariums with sand or fine gravel substrates. These snails love to burrow into the ground to ambush prey and rest, which also helps aerate the substrate and prevent dangerous anaerobic gas pockets from forming.
Water Chemistry & Shell Integrity: Requires a pH range of 7.2 – 8.0 and medium-to-hard water (gH above 8, kH above 4). Hard, alkaline water provides the essential calcium required to keep their thick, ribbed shells structurally sound and vibrant.
Coexistence Warning: Do not house Assassin Snails with highly desirable ornamental snails (like large Mystery Snails or Nerite Snails) unless they are significantly larger, as hungry packs of Assassins can occasionally team up on larger prey. They are completely safe for adult dwarf shrimp and fish.