Cerith snail

Cerithium litteratum

Family : Cerithiidae

InvertebrateMarinesnail

The cerith snail is a popular marine herbivore in reef aquariums, valued for its algae-cleaning efficiency. It is hardy, peaceful, and easy to keep.

Cerith snail — photo 1 sur 4
Udo Schmidt from Deutschland · Wikimedia Commons · CC BY-SA 2.01 / 4
Popularity
Marine snail
reef algivore
Availability
Common in shops
Shop availability
IUCN Status
LC
Least Concern
Biotope
Caribbean
Récifs de l'Atlantique Ouest tropical.

Description

Cerithium litteratum has an elongated, conical shell with distinct whorls and spiral ridges. Its coloration is variable, often cream with brown or black spots forming zigzag patterns. It reaches an adult size of about 3 cm. It is an active grazer that moves slowly over rocks and sand. There is no visible sexual dimorphism. It is completely peaceful and compatible with most reef inhabitants.

Habitat

Region :

This small marine snail inhabits shallow reef flats, seagrass beds, and rocky shores. It is commonly found on hard substrates covered with algae and detritus. It prefers clear, well-oxygenated water with moderate flow. It is common in lagoons and reef slopes.

Distribution :

Recommended parameters

Temperature2228 °C
pH8.18.4
Salinity1.0231.025
NO₃
≤ 20 mg/L
PO₄
≤ 0.1 mg/L

Care

Difficulty
1/5
Diet
Herbivore
Min. tank
20 L
Min. group
1
Adult size
3 cm
Lifespan
2 years
Temperament
Peaceful
Propagation
La reproduction en captivité est rare ; les œufs sont pondus en petites masses gélatineuses mais les larves planctoniques sont difficiles à élever.

Care notes

A tank of at least 20 liters is sufficient for a small group. Water parameters should be stable: temperature 22-28°C, pH 8.1-8.4, salinity 1.023-1.025. A setup with live rock and a sandy substrate is ideal. It feeds mainly on algae but will also accept algae wafers and leftover food. Avoid copper-based medications as they are toxic to invertebrates. It is sensitive to large salinity swings.

Similar species

Espèces proches, même habitat ou même maintenance

References