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Assassin Snails: A Guide to Care and Lifecycle


Assassin snails (Clea helena) are small freshwater snails known for their beautiful appearance and predatory behavior. They are native to Southeast Asia and are widely kept in freshwater aquariums as a natural solution for controlling snail populations. In this article, we will explore the care and lifecycle of assassin snails, including their habitat, diet, behavior, reproduction, and tips for keeping them in a home aquarium.


Aquatic snail living in a fishtank, tropical aquarium snail eating other snails, assassin snail.
Assassin snails in the aquarium.

Habitat:

Assassin snails are typically found in slow-moving rivers, streams, and marshy areas in Southeast Asia, including Thailand, Malaysia, and Indonesia. In an aquarium, they prefer a similar environment with sandy or fine-grained substrate, which allows them to bury themselves and search for prey. They also require hiding places such as caves, rocks, or driftwood to retreat to when they are not hunting.

Water parameters are important for assassin snails. They prefer slightly acidic to neutral water with a pH range of 6.5 to 7.5, and a temperature range of 70-80°F (21-27°C). It's essential to maintain good water quality with regular water changes and proper filtration to ensure good water quality and the well-being of assassin snails.


Diet:

As the name suggests, assassin snails are predators and feed on other snails, particularly smaller species such as bladder snails, ramshorn snails, and trumpet snails. They use their long, pointed proboscis to impale and consume their prey. Assassin snails are also scavengers and will consume leftover food, dead animals, and organic debris in the aquarium.

Assassin snails should be fed a balanced diet to thrive in captivity. While they primarily eat snails, it's important to supplement their diet with other foods. Commercial sinking pellets, frozen or live foods such as brine shrimp, bloodworms, and daphnia can be fed to assassin snails. However, be cautious not to overfeed them, as it can lead to poor water quality and health issues.


Behavior:

Assassin snails are relatively active snails and are known for their predatory behavior. They actively search for snails to consume, using their sensitive tentacles to locate and capture prey. Once they find a snail, they use their proboscis to puncture the snail's shell and consume the soft tissues inside. Assassin snails are generally peaceful towards other tank inhabitants, but they may attack and consume smaller snails or slow-moving, sick, or injured fish.


Reproduction:

Assassin's are egg laying snails, which means they come together to lay single eggs in the substrate. They reproduce sexually, and a male and female are required for reproduction. However, they do not reproduce as rapidly as other snail species, which makes them a popular choice for controlling snail populations in an aquarium.


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