Buccinidaeinvertebratesbeginner

Assassin Snail (Clea helena)

Clea helena

Origin: Southeast Asia

A

Water Parameters

Temperature2428 °C
15 °C35 °C
pH78
49
GH (Hardness)618 °dGH
0 °dGH30 °dGH
KH (Alkalinity)310 °dKH
0 °dKH20 °dKH

Quick Stats

Max Size
3 cm
Min Tank
20 L
Lifespan
2-3
Swimming Level
bottom
Schooling
No
Diet
Carnivore — other snails, sinking meaty foods, shrimp pellets
Temperament
Peaceful toward fish and adult shrimp; predatory toward other snails

About

The Assassin Snail is a predatory freshwater snail renowned for hunting and consuming pest snails such as Malaysian Trumpet Snails and bladder snails, making it invaluable for natural population control. Its attractive banded yellow and brown shell resembles a tiny bumblebee. Generally non-aggressive toward adult shrimp though juveniles may be at risk.

Care Guide

Introduce 3–6 snails per 50 L to control infestations. They reproduce slowly — pairs will breed but not explosively. Will also eat sinking pellets and meaty foods if pest snails run out. Maintain good water quality and calcium availability (pH 7.0+) for healthy shell development. Avoid copper medications.

Buy Assassin Snail (Clea helena) from FinsHQ shops

Shops currently listing this species with stock available

No shops are currently listing Assassin Snail (Clea helena). List your shop on FinsHQ.
Built for aquarium retailers

Sell Assassin Snail (Clea helena) in your shop?

Join aquarium shops already using FinsHQ. Get a beautiful webshop, mobile app, and inventory management — built for aquatic retailers.

Start your free store