Nassarius Snail
Nassarius sp.
Also known as Nassarius Whelk, Nass Snail, Detritius Snail
Animalia›Mollusca›Gastropoda›Neogastropoda›Nassariidae
📍 Worldwide tropical & subtropical oceans
Small sand-dwelling scavenger that buries itself and erupts from the substrate to feed on meaty detritus. Excellent sand bed aerator and clean-up crew staple.
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Tanks keeping this 🐟
Kept by 1 hobbyistCommunity tanks featuring Nassarius Snail.
Care Guide
Diet
Nassarius snails are detritivores that feed primarily on decaying organic matter, uneaten food, and dead organisms in the sand bed. Feed them meaty foods like frozen bloodworms, mysis shrimp, or small pieces of raw fish 2-3 times weekly, though they will scavenge continuously. They rarely need supplemental feeding if the tank has adequate bioload and detritus.
Behavior
These snails are mostly nocturnal and spend daylight hours buried in the substrate, emerging at night or when food is detected to feed. They are excellent sand bed aerators, constantly burrowing and turning over substrate while searching for food. They are peaceful and solitary, showing no aggression toward tank mates.
Breeding
Breeding Nassarius snails in captivity is extremely rare and difficult, as they require specific environmental triggers and larval development stages that are hard to replicate in home aquariums. Sexual reproduction occurs, but most captive populations do not breed successfully. Hobbyists typically rely on wild-caught specimens or aquaculture sources.
Tank Mates
Peaceful reef fish with no predatory interest in snails; compatible water parameters
Benthic scavenger that shares similar sand-dwelling habits and peaceful temperament
Non-aggressive, reef-safe, and shares detritivore feeding ecology
Compatible snail species with similar care requirements and peaceful behavior
Benthic fish that shares substrate zone; non-predatory toward snails
Peaceful algae grazer that occupies similar bottom habitat without competing for food
Common Diseases
Shell Erosion
Pitting, chalky appearance, or thinning of shell; reduced activity
Improve water quality and calcium levels; ensure proper pH (8.1-8.4); perform regular water changes; add calcium supplements if needed
Parasitic Infection
Lethargy, failure to emerge from shell, visible parasites on body or shell
Quarantine affected snails; perform dips in freshwater or medicated baths; improve tank sanitation and water quality
Bacterial Infection
Foul odor from shell, tissue decay, cloudy appearance around foot
Increase water changes and aeration; maintain stable salinity and temperature; remove dead tissue if possible; consider antibiotic treatment in severe cases
Starvation
Prolonged inactivity, failure to emerge, visible weight loss
Increase feeding frequency with meaty foods; ensure adequate bioload in tank; supplement with frozen bloodworms or mysis shrimp
Tips from the community 💡
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Quick Facts
- pH
- 8.1–8.4
- diet
- detritivore/scavenger
- salinity
- 1.023–1.025 SG
- minTankSize
- 10 gallons
- temperature
- 72–79°F (22–26°C)
Water it likes
- ph
- 8.1–8.4
- ammonia
- 0 ppm
- nitrate
- <20 ppm
- hardness
- 8–12 dGH
- temperature
- 72–81°F (22–27°C)
Legality
No state or federal restrictions on record for this species.
Not legal advice, and possibly incomplete or out of date. Rules vary by state and locality and change over time — always confirm the current regulations with your state wildlife or agriculture agency before buying, keeping, or shipping this species.
Temperature
72–79°F
22–26°C
