Common name: Checkered Nerite

Scientific name: Nerita tessellata Gmelin, 1791

General Information

The Checkered Nerite, scientifically known as Nerita tessellata, is a small but highly beneficial addition to marine aquariums. Known for its striking black-and-white checkered shell pattern, this snail is not only a visual delight but also a natural algae cleaner, making it a favorite among reefkeepers and hobbyists. Its hardy nature and adaptability to various tank conditions make it an excellent choice for beginners and experienced aquarists alike.

Native to the rocky intertidal zones of the Western Atlantic, including the Caribbean and Gulf of Mexico, Nerita tessellata is well-adapted to fluctuating conditions, such as changes in salinity and temperature. This resilience translates well to captivity, where it thrives in stable, well-maintained aquariums. Its small size and peaceful temperament make it compatible with a wide range of tank mates, including other snails, fish, and invertebrates.

Details

Estimated price
Cheap Affordable and widely available in the trade
Recommended minimum volume
20 liter (5.3 gallons)
Salinity
S.G. 1.023 to 1.026
Temperature
24 to 28 °C (75 to 82 °F)
Acidity
pH 8 to 8.5
Average size
3 cm (1¼″)
Care level
Very easy Very easy to care for, ideal for beginners
Diet
Herbivore Primarily feeds on algae; supplement with algae wafers if needed
Reefsafe
Yes
Aggression
Peaceful
Captive bred
No

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Mollusks
    Mollusca
  3. Class
    Gastropods
    Gastropoda
  4. Order
    Nerite Snails
    Cycloneritimorpha
  5. Family
    Nerite Snails
    Neritidae
  6. Genus
    Nerite Snails
    Nerita
  7. Species
    Checkered Nerite
    Nerita tessellata Gmelin, 1791
  8. Synonyms
    Nerita angulata Röding, 1798
    Nerita exarata L.Pfeiffer, 1840
    Nerita varia Mörch, 1852
  9. Source: GBIF | Global Biodiversity Information Facility

Care

Caring for the Checkered Nerite is straightforward, as it requires minimal intervention. These snails are best kept in aquariums with plenty of live rock and surfaces where algae can grow. They are excellent grazers and will spend most of their time cleaning the tank of nuisance algae, contributing to the overall health and cleanliness of the aquarium.

While they are hardy, maintaining stable water parameters is essential for their well-being. They prefer tanks with moderate water flow and plenty of hiding spots, such as crevices in live rock. Avoid keeping them in tanks with aggressive fish or invertebrates that may prey on them.

Diet and Feeding

The Checkered Nerite is a herbivore, primarily feeding on algae. In captivity, they will graze on film algae, diatoms, and other microalgae that naturally grow on tank surfaces. If algae levels are insufficient, supplement their diet with algae wafers or blanched vegetables like zucchini or spinach. These snails are efficient cleaners and can help control algae growth in the aquarium.

Feed them sparingly, as overfeeding can lead to water quality issues. Their natural grazing behavior ensures they are almost always foraging, so providing a consistent source of algae is key to their health.

Behavior and Compatibility

Nerita tessellata is a peaceful and non-aggressive species, making it an ideal addition to community tanks. They are solitary creatures but can be kept in groups without any issues. Their small size and docile nature mean they pose no threat to other tank inhabitants, including fish, corals, and other invertebrates.

These snails are known for their ability to cling tightly to surfaces, which helps them avoid being dislodged by strong water currents or curious tank mates. However, they may occasionally venture out of the tank, especially if water conditions are suboptimal. Ensure the tank is securely covered to prevent escapes.

Reproduction

Reproducing Nerita tessellata in captivity is challenging. While they may lay eggs on tank surfaces, the larvae require specific conditions, including brackish water, to develop successfully. As a result, most Checkered Nerites available in the trade are wild-caught. Hobbyists interested in breeding them should research their complex life cycle and consider setting up a dedicated breeding system.

Health and Common Issues

Checkered Nerites are hardy and resistant to many common aquarium ailments. However, they are sensitive to copper-based medications, which can be lethal to them. Avoid using such treatments in tanks housing these snails.

When selecting a Checkered Nerite, look for individuals with intact shells and active movement. A healthy snail will have a smooth, unblemished shell and will attach firmly to surfaces. Regularly monitor their activity levels and ensure they are grazing effectively. If a snail appears lethargic or inactive, check water parameters and address any issues promptly.

Habitat

In the wild, Nerita tessellata inhabits rocky intertidal zones, where it endures fluctuating salinity, temperature, and wave action. These snails are often found clinging to rocks and other hard surfaces, grazing on algae. Their natural resilience to changing conditions makes them well-suited for life in captivity, provided their basic needs are met.

To replicate their natural habitat, provide a tank with plenty of live rock and stable water conditions. Moderate water flow and a consistent source of algae will help them thrive. Their small size and adaptability make them suitable for nano tanks as well as larger reef systems.