Collonista Snails | Micro Trochus Snails

Collonista snails, often sold in the hobby as micro trochus snails, are extremely small reef-safe grazers that help clean film algae, biofilm, and leftover organics from places larger snails usually miss. Their tiny size makes them especially useful around rockwork, frag plugs, racks, and narrow crevices throughout the aquarium.

If you are looking for a clean-up crew member that can work the small surfaces between frags and inside porous rock, Collonista snails are a practical choice. They are often most active after lights out and are best kept in groups for more noticeable grazing coverage.

Why Collonista Snails Stand Out

• Very small size makes them ideal for tight spaces and fine-detail grazing
• Helpful film algae and biofilm grazers for established reef systems
• Reef-safe with corals, fish, and other common invertebrates
• Most active at night, adding around-the-clock clean-up crew support
• Best kept in groups for broader coverage across rock and frag systems
• Can reproduce readily in established aquariums, helping build a longer-term in-tank population

In-House Aquacultured at New Dawn Aquaculture

These Collonista snails are farmed in house at New Dawn Aquaculture. That matters for reef keepers who want clean-up crew livestock already adapted to aquarium conditions and produced through a more controlled, sustainable aquaculture process.

Because we culture these snails ourselves, they are a natural fit for hobbyists who value aquacultured livestock and want practical utility from even the smallest members of their reef clean-up crew.

A Good Fit For Established Reef Tanks

One of the biggest advantages of Collonista snails is that they can breed readily in established customer tanks when conditions are favorable. For reef keepers, that means a small starting group can become an ongoing part of the aquarium's clean-up crew over time.

While population growth will vary from tank to tank, their ability to reproduce in captivity makes them especially appealing for hobbyists who want a self-sustaining micro-grazer that supports long-term system stability.

Care Notes

• Temperament: Peaceful and reef-safe
• Role: Clean-up crew grazer
• Best use: Established reef aquariums with natural surfaces to graze
• Activity pattern: Often more visible in the evening and overnight

Because of their tiny size, Collonista snails are best used as a support member of a broader clean-up crew rather than as a single algae-control solution. To explore more options, browse our Inverts collection.

For order details, see our shipping information and Arrive Alive Guarantee.