description Assassin Snail (Clea helena) Overview
The assassin snail, scientifically known as Clea helena, is a freshwater carnivorous gastropod native to slow-moving waterways in Southeast Asia, including Thailand and Malaysia. Recognizable by its yellow-and-black banded conical shell, this mollusk has become highly popular in the global aquarium hobby. It is frequently utilized by fishkeepers as a biological control method, as it actively hunts and consumes pest snail species that overpopulate planted freshwater tanks.
help Assassin Snail (Clea helena) FAQ
What does an assassin snail eat?
Clea helena is a freshwater carnivorous snail that hunts other snails and small aquatic prey. In aquariums, it is often kept to reduce populations of pest snails.
Where does Clea helena come from?
The species is native to slow-moving freshwater habitats in Southeast Asia, including Thailand and Malaysia. It is adapted to streams, ponds, and other calm waterways rather than marine water.
How can I identify an assassin snail?
It has a pointed, conical shell with yellow-and-black banding. The shell pattern and elongated shape distinguish it from many common round-shelled aquarium snails.
Can assassin snails live with aquarium fish?
They are commonly kept with peaceful freshwater fish and invertebrates that are too large to treat as prey. They may attack smaller snails, so they are not ideal for tanks where every ornamental snail must be preserved.
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