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free delivery over £120

Orders under £20 are subject to a £5 surcharge*

Assassin Snail


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Common & Latin Name: Assassin Snail - (Clea helena)

Assassin snails, or Clea helena, are a popular addition to aquariums due to their fascinating behaviour and predatory nature. Here are some tips for keeping them:

Firstly, make sure to provide an adequate tank size of at least 10 gallons for them to thrive. Secondly, assassin snails are quite adaptable and can tolerate a wide range of water conditions. However, they prefer slightly alkaline water with a pH between 7.0 and 8.0.

Assassin snails are carnivorous and primarily feed on other snails, but they can also consume fish food, algae wafers, and other meaty foods. As such, it's important to make sure they are given a steady supply of food.

Assassin snails are generally peaceful and can be kept with other peaceful fish and invertebrates. However, they may attack and eat smaller snails, so it's best to avoid keeping them with species that are particularly vulnerable.

Finally, it's worth noting that assassin snails are livebearers, with females producing up to 30 young at a time. However, they are not prolific breeders and will not overpopulate your tank.

Overall, assassin snails are relatively easy to care for and make a great addition to any aquarium. Just make sure to provide them with a suitable environment and a steady supply of food, and they will thrive.

If you require any advice on keeping these, please contact us and speak to member of the team.

What is Backorder?

Answer: Available on backorder means we do not have the item currently in stock but are able to order it in and get it out to you quickly.

What is your special local delivery

Answer: This is where we can deliver livestock to you ourselves to save it going to a courier. This means it will be handled with optimum care same day within the local area of our shop.

If you have any questions about this product please feel free to contact us and speak to a member of the team.

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If you live within a 10 mile radius of Birmingham University, and your order is £30 or over (not including postage), you qualify for the option to use our Delta Prime delivery service. This means delivery is at a discounted rate and is also hand delivered by ourselves. For livestock this means there’s no overnight shipping, and hand delivered with care by us. Once your order has been placed, we will contact you to arrange time for delivery. Depending on booking slots, orders placed before 12pm, can be delivered the same day or whenever suits you.


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7 Days a Week: 3pm-7pm


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What are freshwater invertebrates?

Answer: Freshwater invertebrates are small, aquatic animals without a backbone, such as snails, shrimp, crayfish, and various types of insects, that live in freshwater ecosystems.

Can I keep freshwater invertebrates in a regular aquarium?

Answer: Yes, you can keep freshwater invertebrates in a dedicated aquarium, but you need to provide the appropriate water conditions, food, and care for them.

What are the basic water parameters for freshwater invertebrates?

Answer: Water parameters can vary depending on the species, but generally, freshwater invertebrates prefer stable water conditions with a neutral pH, temperature around 70-78°F (21-26°C), and low ammonia and nitrite levels.

What do freshwater invertebrates eat?

Answer: The diet varies by species, but many invertebrates feed on algae, detritus, and decaying plant matter. Some may also consume specialized pellets or live foods.

Can different types of freshwater invertebrates be kept together?

Answer: It's essential to research each species' compatibility and requirements. In some cases, certain species can coexist, while in others, they may compete or become prey for each other.

How do I maintain water quality for freshwater invertebrates?

Answer: Regular water changes, proper filtration, and monitoring water parameters are crucial to maintain good water quality for your invertebrates.

Do freshwater invertebrates need hiding spots or decorations in the aquarium?

Answer: Yes, providing hiding spots and decorations like plants, caves, and rocks can reduce stress and create a more natural habitat for your invertebrates.

Do I need to quarantine new invertebrates before adding them to my aquarium?

Answer: It's a good practice to quarantine new invertebrates for a few weeks to prevent introducing diseases or parasites to your existing aquarium.

Can I breed freshwater invertebrates in my aquarium?

Answer: Many freshwater invertebrates can be bred in captivity with the right conditions. Research the specific breeding requirements of the species you're interested in.

What are some common issues or diseases that affect freshwater invertebrates?

Answer: Common issues include overfeeding, poor water quality, and diseases like shell rot. Monitoring and maintaining a healthy environment can help prevent these problems.

Can I keep freshwater invertebrates with fish?

Answer: Some invertebrates can coexist with certain fish species, but compatibility and safety should be carefully considered. Avoid aggressive or predatory fish.

How can I acclimate freshwater invertebrates to my aquarium?

Answer: Use the drip acclimation method to slowly adjust water parameters in a container before transferring the invertebrates to their new tank.

What are some beginner-friendly freshwater invertebrates for a new aquarium owner?

Answer: Beginner-friendly options include snails like Nerite or Mystery snails, and freshwater shrimp like Cherry or Amano shrimp or Bamboo shrimp. Remember to research and tailor your care to the specific needs of the freshwater invertebrates you plan to keep in your aquarium.