
Illustrative images
Anentome helena
The Assassin Snail, scientifically known as Clea helena, is a fascinating invertebrate species in the aquarium hobby. Known for their unique appearance and intriguing behavior, these snails are popular among aquarists for their ability to manage pest snail populations.
Assassin Snails are native to Southeast Asia, primarily found in regions with slow-moving waters. They inhabit freshwater environments where they can find ample substrate for burrowing and hunting.
These snails are relatively easy to care for, making them suitable for both beginners and experienced aquarists. Below are key care requirements for providing an optimal environment:
Assassin Snails are generally peaceful and can be housed with various fish and invertebrates. However, they should not be kept with very small fish or shrimp, as they may see them as food. Ideal tank mates include:
Though they can survive on algae and detritus, Assassin Snails are carnivorous and primarily feed on other snails. It is essential to provide a diet rich in protein to maintain their health:
Assassin Snails do not have specific lighting or CO2 requirements, but a well-lit tank can promote plant growth, which benefits their habitat. Moderate light levels are typically sufficient. If the tank includes live plants, consider using a low to moderate level of CO2 to support plant health.
Under optimal conditions, Assassin Snails can live for several years. They are also known for their intriguing behavior; they can be seen actively hunting other snails, which can be both entertaining and beneficial for controlling pest populations in your aquarium.
The Assassin Snail is an excellent choice for aquarists looking to maintain a balanced aquarium while managing pest snail populations. With proper care and suitable companions, they can thrive and add a unique dynamic to your aquatic landscape.
Choose a tank of at least 5 gallons (19 liters) with a sandy or fine-gravel substrate to allow snails to burrow. ([theaquariumwiki.com](https://theaquariumwiki.com/wiki/Anentome_helena?utm_source=openai))
Introduce Assassin Snails to the tank slowly to prevent shock, matching water parameters closely to their previous environment.
Keep water temperature between 68-82°F (20-28°C) and pH between 6.5-7.5. Perform regular water changes to maintain water quality. ([aquahoy.com](https://aquahoy.com/assassin-snail-anentome-helena-care-feeding/?utm_source=openai))
Provide a diet of other snails, such as Malaysian Trumpet Snails and Ramshorn Snails. If no snails are present, supplement with sinking pellets or frozen foods. ([aquariumstockingcalculator.com](https://www.aquariumstockingcalculator.com/species/assassin-snail?utm_source=openai))
Ensure that tank mates are compatible, avoiding small, slow-moving fish or shrimp that may be preyed upon.
A minimum tank size of 5 gallons (19 liters) is suitable for Assassin Snails. ([theaquariumwiki.com](https://theaquariumwiki.com/wiki/Anentome_helena?utm_source=openai))
Assassin Snails thrive in water temperatures between 68-82°F (20-28°C), with a pH range of 6.5-7.5. ([aquahoy.com](https://aquahoy.com/assassin-snail-anentome-helena-care-feeding/?utm_source=openai))
Assassin Snails are carnivorous and primarily feed on other snails, such as Malaysian Trumpet Snails and Ramshorn Snails. ([aquariumstockingcalculator.com](https://www.aquariumstockingcalculator.com/species/assassin-snail?utm_source=openai))
Assassin Snails can be kept with shrimp if they are well-fed and the tank provides sufficient hiding spots for the shrimp. ([superiorshrimpaquatics.com](https://www.superiorshrimpaquatics.com/blogs/news/assassin-snail-care-breeding-guide-habitat-diet-lifespan-tips?utm_source=openai))
Assassin Snails are sexually dimorphic, requiring both male and female individuals for reproduction. After mating, females lay eggs individually on various substrates, which hatch in about three weeks. ([theaquariumwiki.com](https://theaquariumwiki.com/wiki/Anentome_helena?utm_source=openai))