Do Assassin Snails Eat Snail Eggs: (Shocking Truth Revealed)

Do assassin snails eat snail eggs? Assassin snails, known for their predatory nature towards other snails, are often sought after by aquarium enthusiasts to help control snail populations in their tanks. One common question among hobbyists is whether assassin snails will also eat snail eggs. 

The answer is yes; assassin snails are not picky and will consume snail eggs and adult snails. 

Their voracious appetite makes them effective at keeping snail populations in check, making them a popular choice for those dealing with unwanted snail infestations in their aquariums.

what does assassin snail eat

In this article, we will explore the feeding habits of assassin snails, the benefits of having them in your tank, and how they can help maintain a healthy aquatic ecosystem.

So, if you’re looking for a natural solution to your snail problem, keep reading to learn whether Adult assassin snails feed on snail eggs. 

Do Assassin Snails Eat Snail Eggs in Tank?

Yes, assassin snails will eat snail eggs in a tank, but there are some things to consider:

  • Soft vs. Hard Eggs: Assassin snails are likelier to go for soft snail eggs. Nerite snail eggs, for example, have a rugged casing that deters most predators, including assassin snails.
  • Other Food Availability: If plenty of pest snails are in the tank, the assassin snails will focus on those first. They may not even bother with the eggs if there’s a readily available food source.
  • Species of Snail Eggs: Assassin snails are not interested in eating their own eggs or the eggs of other assassin snails.

Assassin snails can be a helpful addition to a tank if you’re trying to control a pest snail population. They’ll also help keep the tank clean by eating leftover fish food and detritus. Just be aware that they may also eat the eggs of other desirable snail species in the tank.

Assassin Snails and Pleco Eggs

Assassin snails are carnivorous snails often introduced into aquariums to control pest snail populations. Unfortunately, this predatory nature also means they will eat pleco eggs if given the opportunity.

Here’s a quick rundown on why assassin snails might not be the best tankmates for breeding plecos:

  • Opportunistic feeders: While they primarily target other freshwater snails, assassin snails will readily consume fish eggs, including pleco eggs, if available.
  • Nocturnal hunters: Assassin snails are more active at night, which coincides with when plecos are most likely to spawn. This increases the chance of them encountering the eggs.
  • Small pleco eggs: Pleco eggs are generally smaller, making them easy targets for assassin snails.

If you’re hoping to breed plecos, avoiding keeping them with assassin snails in the same tank is best.

Assassin Snail Natural Habitat

Assassin snails are natural carnivores that are commonly found in the freshwater ecosystem. They are known to feed on various snails, such as ramshorn snails, pond snails, and Malaysian trumpet snails.

How Many Assassin Snails Per Gallon

They are often kept in planted tanks to help control the snail population explosions. Assassin snails effectively eliminate smaller snails that can harm the substrate and plants in the tank. They also prey on worms, shrimp fry, and even dead fish.

When buying assassin snails, it is essential to consider the tank size and water parameters to ensure they thrive in their new environment.

It is recommended that they be provided with a substrate suitable for breeding assassin snails and keeping them well-fed with algae wafers or fish flakes. Assassin snails are shrimp safe and will not harm other tank inverts, making them a great addition to aquatic communities.

Do Assassin Snails Breed And Reproduce In Aquariums?

Yes, assassin snails can breed and reproduce in aquariums. They are known to be relatively quick breeders compared to other aquarium snails. Here’s some information about their reproduction:

  • Sexual reproduction: Assassin snails require both a male and a female for breeding
  • Egg laying: They lay single eggs, but often in clusters, on surfaces like aquarium glass, plants, or rocks
  • Egg development: The eggs take about two months to hatch
  • Growth: Baby assassin snails are tiny and burrow in the substrate as they mature

While they can reproduce, they typically aren’t known to overrun a tank. However, their population growth depends on the availability of prey (other snails) in the aquarium.

Assassin Snail Caring Tips

To keep assassin snails healthy, provide a fully cycled tank of at least 10 gallons with clean water and stable parameters. They’d eat meaty foods like blood worms, shrimp pellets, and live plants.

Assassin snails are excellent scavengers and will also consume algae eaters like MTS. When caring for assassin snails, check their snail safety by removing excess uneaten food to maintain water quality.

Additionally, they should be provided with empty snail shells for hiding and bright yellow caves for shelter. Assassin snails can live longer and reproduce offspring in a sustainable marine environment with proper care.

Acclimate the assassin snails slowly to prevent shock when traveling or adjusting to a new tank. Assassin snails have a dark brown shell that helps them camouflage in their environment.

Watch out for aggressive tankmates like cichlids that may harm the assassin snails. It’s essential to have a good filter system in place to keep the tank clean and ensure the water quality remains healthy. Providing various foods will satisfy the assassin snails and prevent them from getting hungry.

By following these care tips, your assassin snails will thrive and contribute to a balanced aquatic ecosystem.

Do assassin snails eat baby mystery snails?

Yes, assassin snails can eat baby mystery snails. Their prey includes snails smaller than them, except for very large adult mystery snails.

What do assassin snails eat?

Assassin snails are carnivores that primarily eat other snails, significantly smaller species. They may also scavenge for dead fish or consume leftover fish food.

Do assassin snails eat shrimp eggs?

Assassin snails might eat shrimp eggs if the opportunity arises. They’re opportunistic feeders, but peaceful shrimp are generally safe.

Do assassin snail eat fish eggs?

Do assassin snails eat fish eggs? Yes, assassin snails will eat fish eggs. They’re carnivores with a taste for easy prey, like unattended eggs.


In conclusion, aquarium enthusiasts are constantly seeking effective and natural solutions to combat snail infestations. Thankfully, the introduction of assassin snails has proven to be a game-changer. With their striking appearance and lethal hunting skills, these tiny assassins have become the go-to solution for snail control. They feast on adult snails and have a particular taste for their eggs, making them a formidable force in snail population management.

So, if you’re wondering, “Do assassin snails eat snail eggs?” rest assured that they do! By including assassin snails in your tank, you’ll maintain a healthier and cleaner environment and prevent future snail outbreaks. These stealthy assassins are the guardians of your aquatic ecosystem, ensuring a thriving habitat for your beloved fish and plants. Embrace their predatory prowess and bid farewell to unwanted snails and their eggs!

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About Me

I am the founder of, a devoted wife and mother, and an avid fish enthusiast. My aim is to assist fellow fish lovers worldwide in understanding how to properly care for and breed their pet fish.

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