Mexican Turbo Snail (Turbo fluctuosa) Care Guide
Turbo fluctuosa is a large, cool-water turban snail from the eastern Pacific, prized for consuming large amounts of hair and film algae in reef tanks.
Compiled by Aquairi from published sources · Published · Updated
Overview
Turbo fluctuosa (W. Wood, 1828) is a large, heavy-shelled turban snail of the family Turbinidae, sold as the Mexican Turbo Snail. It is extremely popular among reef aquarists because it quickly consumes large amounts of nuisance algae, and is particularly fond of hair algae. Note that specimens sold under this name are sometimes the Indo-Pacific zebra turbo (Turbo bruneus) instead.
Taxonomy
- Family: Turbinidae
- Genus: Turbo
- Scientific name: Turbo fluctuosa
- Authority: W. Wood, 1828
Habitat
The species is native to the Gulf of California (Sea of Cortez) off Mexico, with a range extending from Cedros Island, Baja California, south to Peru and including the Galapagos and Tres Marias Islands. It is found in intertidal zones, under and attached to rocks and dead corals where fresh algae growth is abundant, most commonly at depths of about 2 to 33 feet. These cooler-water origins make it less tolerant of warm tropical tank temperatures.
Tank requirements
- Minimum tank volume: 80 L
- Temperature: 18-24 °C (64-75 °F) — prefers cooler water
- pH: 8.1-8.4
- Carbonate hardness (dKH): 8-12
- Specific gravity: 1.024-1.026
- Adult shell size: 4-6 cm
- Lifespan: 1-3 years
- Well-secured rockwork (it can bulldoze loose rock)
Diet
It is a herbivore that grazes large quantities of hair algae and film algae from rock and glass. An active feeder, it needs ample grazing space; in tanks with little algae the diet should be supplemented with dried algae.
Compatibility
It is peaceful and reef-safe, but its large, heavy shell can knock over loose rocks and unsecured coral frags as it forages. Because it prefers cooler water, sustained warm temperatures are a common cause of die-off. Predatory fish such as triggerfish and pufferfish should be avoided.
Breeding the Mexican Turbo Snail (Turbo fluctuosa)
Overview
Turbo fluctuosus (Wood, 1828), often listed in the trade as Turbo fluctuosa, is a marine turban snail of the family Turbinidae. The shell reaches roughly 25-86 mm in length. The species occurs in the eastern Pacific from the Baja California peninsula south to Peru and around the Galapagos archipelago. In aquaria it is kept as a heavy-shelled grazer that scrapes film and hair algae from rock and glass.
Sexing
Members of the Turbinidae are gonochoristic, meaning each animal is either male or female, but the sexes cannot be told apart by shell or external appearance. Sex is normally confirmed only by dissection of the gonad, which is not practical for aquarium keepers.
Spawning & Larvae
Reproduction in vetigastropod turban snails is by broadcast spawning: males and females release sperm and eggs into the water column where fertilization is external. Embryos develop first into a free-swimming trochophore and then into a planktonic veliger larva that drifts and feeds before settling and metamorphosing into a juvenile snail.
Common Challenges
- The tiny planktonic veligers are removed by mechanical filters, protein skimmers and pump intakes within a closed system.
- Sexes are external-fertilizing broadcasters, so controlled pairing is not possible in a display tank.
- Larvae require a continuous supply of suitable planktonic food and stable conditions that home systems do not provide.
- Turbo fluctuosa prefers cooler water than most tropical reefs, narrowing the conditions a keeper can offer.