Mexican Turbo Snail

Quick facts

Identity

Also known as

Turban Snail; Top Shell Snail; Trochus Snail; Gulf Turban; Eastern Pacific Turban; Wavy Turban

Synonyms

Turbo fluctuosus

Environment

Saltwater

Native to

Mexico (Gulf of California), Baja California, Peru, Galapagos Islands

Habitat

Intertidal to shallow subtidal rocky reef shores, 2-40 ft depth, sheltering under rocks and dead coral among crevices and boulders on mud, sand, or rubble substrate

Sourcing

Wild-caught

Conservation

Not Evaluated

Care

Care level

Easy

Temperament

Peaceful

Adult size

0.8 – 2.5 in (1.9 – 6.4 cm)

Lifespan

2 – 5 yrs

Min tank

20 gal (76 L)

Growth rate

Slow

Placement

Bottom

Water

Temperature

72 – 78 °F (22 – 26 °C)

pH

8.1 – 8.4

dKH

8 – 12 dKH

Salinity

1.023 – 1.025 SG

Flow

Moderate

Behavior & compatibility

Social

Solitary

Aggression to own kind

Low

Active

Daytime

Reef safe

Yes

Invert safe

Yes

Shrimp safe

Yes

Clean-up role

Algae, Biofilm

Population boom risk

Low

Feeding & breeding

Diet

Herbivore

Foods

Algae, Biofilm, Vegetables

Breeding type

Broadcast spawner

Breeding difficulty

Not bred in captivity

Sexing

Sexes not externally distinguishable

Target feeding

Beneficial

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Care guide

Overview

A heavy, whorled turban shell distinguishes this Eastern Pacific grazer, collected wild from the Gulf of California and cooler Baja waters. It forages steadily across live rock for film algae and diatoms, favoring the lower end of reef temperatures, and can topple unsecured rock while foraging. Sensitive to copper and nitrate spikes, it requires drip acclimation and stable calcium levels to protect its shell.

Care

This snail does best in a mature reef or fish-only system with plenty of well-established live rock to graze across. Rockwork should be secured with epoxy or careful stacking, since a hungry specimen can dislodge loose rocks or frags while foraging. It prefers cooler-than-tropical temperatures compared to many reef inhabitants, so it suits systems run on the lower end of the reef range rather than warmer tropical setups.

Feeding

Diet consists mainly of film algae, diatoms, and hair algae grazed directly off rock and glass surfaces. In a newer or very clean tank natural algae supply can run out quickly, so dried seaweed or algae wafers should be offered to prevent starvation. Avoid relying on this species alone to solve a heavy hair algae outbreak, as it works best as one part of a broader cleanup crew.

Tank mates

Tankmates should be peaceful and slow enough not to harass this snail, since it cannot defend itself against aggressive fish or crabs and simply withdraws into its shell when threatened. Avoid wrasses, triggers, puffers, hawkfish, and other known snail predators, and watch hermit crab numbers as they may target the shell if unfed. It generally coexists well with other grazing snails and reef-safe corals, provided coral frags are mounted securely against bulldozing.

Breeding

Breeding has not been achieved in home aquariums, and this species is collected from the wild rather than propagated. Reproduction in nature involves broadcast spawning with planktonic larvae that require open ocean conditions to develop, which is not replicable in a closed system.

Health

The main risks are starvation from insufficient algae, shell erosion from low pH or poor calcium and alkalinity, and stress from abrupt swings in salinity or temperature. Watch for a snail that fails to grip surfaces, falls repeatedly, or shows a gaping operculum, as these are signs of decline. This species is highly sensitive to copper-based medications and elevated nitrate, so it should be moved to a separate system if fish in the display need copper treatment.

Sources

1. Turbo Snail: Saltwater Aquarium Snails for Marine Aquariums – LiveAquaria
2. Mexican Turbo Snail – Top Shelf Aquatics
3. The Mexican Turbo Snail (Turbo fluctuosa, Turbo fluctuosus)
4. Mexican Turbo Snail-Turbo fluctuosus

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