Trochus Snail

The Banded Trochus Snail is our favorite snail species here at TSA. A simple, hardy, and powerful algae cleaning machine. These snails are very hardy and can easily flip themselves over if they end up on the sandbed. Trochus Snails can grow up to 3” in shell size, and are known to readily spawn in the home aquarium, capable of creating a stable population over time. The Banded Trochus Snail is very peaceful and because of its shell shape, is not easily eaten or harassed by crustaceans.

Introduction to Trochus Snail (Reef-Safe Algae Grazer & Cleanup Crew Essential)

Trochus snails (Trochus sp.) are hardy, reef-safe algae grazers known for their ability to consume film algae, diatoms, and cyanobacteria while being one of the few snail species that can right themselves if flipped over. Trochus snails readily reproduce in a home aquarium, making them an excellent long-term addition to reef tanks. With their durability, peaceful nature, and efficient algae-eating behavior, trochus snails are a top choice for reef keepers looking to maintain a clean and balanced aquarium.

Care Requirements

Care Level: Easy – Low-maintenance and highly adaptable Minimum Tank Size: 10+ gallons Aquarium Setup: Requires live rock, glass, and sand areas for grazing Trochus snails are primarily nocturnal grazers, spending most of their time cleaning rockwork, tank walls, and equipment.

Diet & Nutrition

Trochus snails are herbivorous grazers, feeding on a wide variety of nuisance algae. Diet: Herbivorous – Prefers diatoms, film algae, and biofilm Recommended Foods: Natural algae growing on rock and glass Cyanobacteria and film algae Unlike some other snails, trochus snails do not consume macroalgae like chaeto or caulerpa.

Lifespan & Growth Rate

Lifespan: 3-5+ years Growth Rate: Slow – Typically reaches up to 2 inches With proper care and food availability, trochus snails can live for several years in a well-maintained reef aquarium.

Temperament & Compatibility

Temperament: Peaceful – Does not compete with other tankmates Reef Safe? Yes – Does not harm corals, fish, or invertebrates

Common Challenges & Considerations

Flipping Over: Unlike some snails, trochus snails can right themselves when flipped, reducing mortality. Requires Algae to Thrive: May need supplemental feeding if algae levels are low. Reproduction in Aquariums: Trochus snails readily reproduce in a home aquarium, helping sustain their population naturally. Regular monitoring ensures a stable population and consistent algae control.

Water Conditions

Temperature: 74-80°F dKH (Alkalinity): 8-12 pH: 8.1-8.4 Specific Gravity: 1.024-1.026

Building a cleanup crew

Trochus graze film algae and diatoms across rock, glass and equipment. Compare other saltwater aquarium snails, browse the wider range of algae eaters, or see all saltwater invertebrates.