Hair Snail (Thiara Cancellata)

Hair Snail (Thiara cancellata) — Nature’s Most Unusual Aquarium Snail

The Hair Snail (Thiara cancellata) is one of the most visually distinctive and conversation-starting snails in the freshwater aquarium hobby. Named for the fine, hair-like bristles or periostracum extensions that protrude from its elongated, turreted shell, this unusual snail from Southeast Asia is a fascinating and functional addition to any planted aquarium or biotope setup. Equal parts curiosity and cleanup crew, the Hair Snail is a snail that genuinely surprises.

A Snail Unlike Any Other

The Hair Snail’s elongated, spiral shell is covered in fine, filamentous extensions that give it a uniquely textured, almost otherworldly appearance — unlike any other freshwater snail commonly available in the hobby. These extensions are a natural feature of the shell’s outer layer and vary in length and density between individuals. In a well-planted aquarium, the Hair Snail moves methodically through the substrate and over hardscape, grazing on algae, biofilm, and organic detritus with quiet efficiency.

Care Profile

• Scientific Name: Thiara cancellata
• Origin: Southeast Asia — rivers, streams, and freshwater habitats across the region
• Size: Up to 3–4 cm
• Temperament: Completely peaceful; safe with fish, shrimp, and plants
• Diet: Omnivore — grazes on algae, biofilm, and organic detritus; will also consume uneaten fish food and decaying plant matter
• Water Temperature: 22–28°C
• pH: 7.0–8.0 (prefers neutral to slightly alkaline water; avoid very soft or acidic conditions which can erode the shell)
• Tank Size: Suitable for any size aquarium from 20L upward
• Breeding: Livebearing; may reproduce in freshwater — populations are generally self-regulating in a well-maintained aquarium
• Note: The hair-like extensions on the shell may wear down over time in aquarium conditions — this is normal and does not affect the snail’s health

Aquascape Compatibility

The Hair Snail is plant-safe and compatible with a wide range of tankmates — peaceful fish, dwarf shrimp, and other snail species all coexist comfortably alongside it. It thrives in planted aquariums with soft substrate, driftwood, and leaf litter where it can forage naturally. A fascinating, functional, and genuinely unique addition to any freshwater setup.

Unusual, fascinating, and endlessly surprising — the Hair Snail is the aquarium snail that makes every visitor do a double take.