Encyclopaedia
Trochus Snail
Trochus histrio
A highly popular and beneficial herbivorous marine gastropod, famous for its conical striped shell and for being a tireless cleaner of rockwork and glass.
- Family
- Tegulidae
- Origin
- Indo-Pacifico tropicale
- Origin
- Cosmopolitan or introducedSouth and Southeast AsiaAustralia, New Guinea, and OceaniaTropical oceans and reefs
- Tank use
- Used in 0 tanks
Share
22 °C - 28 °C
8.1 - 8.4
Marine
Squadra di pulizia dell'acquario (CUC)
Alta
Species description
Geographical Origin and Habitat: Widely distributed in the tropical Indo-Pacific, including the coral reefs of Indonesia, the Philippines, Red Sea, Australia, and Pacific islands. Inhabits shallow rocky reefs.
Taxonomy: Member of the family Tegulidae. Features a thick, top-shaped conical shell decorated with spiral ridges and nodules, measuring 3-5 cm in width. Possesses the valuable ability to right itself. Grows to 4 cm.
Social Behavior: Peaceful, hardworking, and active primarily at night. Constantly crawls over rockwork and glass surfaces, scraping algae off. Harmless to corals and tankmates.
Coloration and Sexual Dimorphism: Shell color has a white or cream base, marked with thick, irregular reddish-pink or dark brown vertical zig-zag stripes. No visible sexual dimorphism.
Care, breeding and tankmates
Tank Setup: Suitable for reef aquariums of 10 gallons or larger. Requires stable live rock structures with ample surface area for grazing. Popular for nano reefs due to its modest size.
Diet and Feeding: Strictly herbivorous. Consumes green hair algae, diatoms, cyanobacteria, and film algae. Supplement with dried seaweed (nori sheets) if natural algae is depleted.
Water Quality: Stable reef parameters. Salinity SG 1.021-1.025, pH 8.1-8.4, temperature 22-28°C. Highly sensitive to copper treatments and elevated nitrates.
Compatibility and Tankmates: 100% reef-safe. Perfect cleanup crew snail. Compatible with peaceful reef fish and corals. May occasionally be targeted by large hermit crabs.
Aquarium Breeding: Can reproduce spontaneously in home aquariums through broadcast spawning. Fertilized eggs develop into larvae that settle quickly on rocky substrates.
Risks and Diseases: Starvation in overly clean aquariums. Low calcium or alkalinity levels preventing proper shell growth. Highly sensitive to copper treatments.
Invertebrate profile
- Type
- Gasteropode marino
- Diet
- Alghivoro
- Ecological role
- Squadra di pulizia dell'acquario (CUC)
- Minimum group
- 1
- Adult size
- 4 cm
- GH
- n/a
- KH
- 8 dKH - 12 dKH
- TDS
- n/a
- Copper
- Alta
- Shock sensitivity
- Alta
- Calcium and minerals
- Alti. Necessita di livelli costanti di calcio, magnesio e durezza KH per garantire il corretto sviluppo e l'ispessimento della conchiglia.
- Molting
- Non muta (è un gasteropode), la conchiglia cresce gradualmente per deposizione di strati calcarei da parte del mantello.
- Reproduction
- Si riproduce abbastanza comunemente tramite rilascio di gameti in acquario. Le larve si insediano rapidamente sul fondo roccioso.
- Compatibility & tankmates
- Assolutamente pacifico. Noto per la capacità di raddrizzarsi da solo in caso di caduta rovesciata, riducendo la predazione.
Ecological Estimates & Biological Models
Image gallery
Licensed images linked to the species or, when marked, to the closest representative taxon.
Related species
Other recommended species with similar care requirements and water parameters.




