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Hairy Snail (Thiara cancellata)

Hairy Snail (Thiara cancellata)

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Descripción
Freshwater Snails

Hairy Snail

A rare Philippine freshwater snail with long, brittle spikes protruding from the shell whorls in a spiral arrangement. One of the most visually distinctive snails available in the hobby -- an effective algae grazer and substrate aerator that cannot breed in freshwater.

Long Brittle Spikes in Spiral Pattern Yellowish to Dark Brown Shell Thiara cancellata Cannot Breed in Freshwater pH 7.0–8.0 Philippines Endemic

Hairy Snails (Thiara cancellata), also known as the Hairy Trumpet Snail or Porcupine Snail, are one of the rarest and most visually unusual freshwater snails in the aquarium hobby. The shell has up to six flattened whorls in yellowish to dark brown colouration, and each whorl bears a series of long, thin, brittle spikes that protrude outward in a spiral pattern along the shell length. These spikes give the snail an appearance unlike anything else commonly kept in freshwater -- a spiny, porcupine-like character that reads as immediately distinctive at close range. Endemic to the Philippines, they are found in slow-moving streams, river mouths, and estuaries with sandy substrates. They are nocturnal, spend part of the day partially buried in substrate, and are active algae grazers that rival Nerite Snails in cleaning thoroughness. Despite the common trade name "Hairy Nerite," Thiara cancellata is not a Nerite -- it belongs to the family Thiaridae. Cannot breed in freshwater. Safe with all Neocaridina shrimp.

Shell, Spikes & Colour

Long brittle spikes protruding in a spiral pattern from each whorl -- the defining feature of the species. The spikes of Thiara cancellata are thin, long, and brittle relative to the shell size. They break easily during normal activity and during handling or transit -- this is normal and causes no harm to the snail. New spikes do not regrow once broken, which means older wild-caught specimens often show reduced or partially broken spike coverage on the older whorls near the apex while retaining intact spikes on the newer growth near the aperture. The spikes are not a defence mechanism; they are simply a structural characteristic of the shell. Up to six flattened whorls in yellowish to dark brown colouration. The shell whorls are relatively flat compared to other tower snails, with clearly distinguishable lines between each whorl. Shell colour ranges from pale yellowish-brown in lighter individuals to a richer dark brown in darker specimens. The body of the snail is typically slightly darker than the shell, and the tentacles are notably short compared to other freshwater snail species. Approximately 1 to 1.2 inches at maturity. Hairy Snails reach approximately 2.5 to 3 cm (1 to 1.2 inches) at full size. In captivity lifespans typically reach 1 to 2 years, though up to 3 years is possible under optimal conditions. The primary cause of shortened captive lifespans is insufficient feeding rather than parameter issues. Not a Nerite snail despite the common trade name. Thiara cancellata is frequently sold as "Hairy Nerite" in the aquarium trade. It belongs to the family Thiaridae alongside Malaysian Trumpet Snails, not to the Neritidae. Its care, behaviour, and reproductive biology are distinct from true Nerites. The common name is a persistent trade misnomer.

Feeding, Burrowing & Requirements

Must be actively fed -- will starve if left to scavenge alone. This is the most critical care point for this species. A common mistake is treating Hairy Snails like other scavenging snails and assuming they will find enough to eat in a well-established tank. They will not. They must be regularly offered algae wafers, shrimp pellets, blanched vegetables (zucchini, spinach, cucumber, carrot), and fish flakes. Starvation is the primary cause of premature death in captivity. Feed every 1 to 2 days and ensure the snail is actually consuming the food offered. Excellent algae grazer -- rivals Nerite Snails in cleaning effectiveness. When adequately fed and in a tank with natural algae growth, Hairy Snails are outstanding algae eaters, consuming soft film algae, green dust algae, hair algae, and biofilm from glass, hardscape, and plant surfaces. They are most active at dusk and through the night, spending the day either sheltering under hardscape or partially buried in substrate. Partial substrate burrower -- buries the front half of the shell, leaving the rear half exposed. Hairy Snails do not fully burrow like Malaysian Trumpet Snails. They bury just deep enough to leave the back portion of the shell exposed above the substrate surface. This burrowing behaviour aerates the top substrate layer and prevents anaerobic gas pockets from forming, benefiting plant roots and overall water quality. Fine sand is required for this behaviour -- coarse gravel prevents natural burrowing. Nocturnal -- most active at dusk and through the night. The peak of activity begins at dusk and corresponds to maximum algae nutrient content at the end of the photosynthetic period. During daylight hours they are largely inactive, sheltering under hardscape or partially buried. New keepers often worry the snail is dead or ill when it is simply resting normally during the day. Cannot breed in freshwater -- population completely stable. Thiara cancellata requires brackish water to breed. All available specimens are wild-collected from the Philippines. In a freshwater aquarium no breeding will occur. The species is reported to be a livebearer producing approximately 1 to 2 juveniles per month under the right conditions, but captive breeding has not been established. pH 7.0 to 8.0, GH 3 to 18, KH 3 to 15, temperature 72 to 77°F. Alkaline, hard water is required for healthy shell maintenance. In acidic water the shell erodes and spike integrity declines. Standard Neocaridina parameters at the neutral to slightly alkaline end are suitable. Not appropriate for Caridina tanks running low pH and active substrate. Good water oxygenation and flow are important -- Hairy Snails come from stream environments and benefit from well-aerated water. Safe with Neocaridina shrimp. Avoid Assassin Snails, crayfish, loaches, and cichlids. Hairy Snails are entirely peaceful and compatible with all Neocaridina shrimp. Assassin Snails will prey on them. Loaches, cichlids, goldfish, and crayfish will damage or consume them. Keep only with peaceful tankmates. Highly sensitive to copper -- avoid copper-based fertilisers and medications. Like all snails and invertebrates, Thiara cancellata is fatally sensitive to copper. Check all fertilisers, medications, and water additives for copper content before using in a tank housing Hairy Snails.
Keeper's Note

The Hairy Snail is one of those tank inhabitants that stops every visitor cold -- the spike structure is genuinely unusual enough that most people have never seen anything like it and want to know immediately what it is. A small group of three on fine dark sand in a well-planted Neocaridina tank gives the substrate level a visual interest that no other snail provides. The main commitment is feeding discipline: offer food every 1 to 2 days, confirm the snail is eating, and this species will reward you with active grazing and a long captive lifespan. Ignore feeding and it will decline quietly over a few weeks.

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Policies & Disclaimers
Before you order · Snails

Policies & Disclaimers

What to expect from your snails, how our guarantee works, and what to do when your order arrives.

Size & appearance

Snail size varies by species and individual. Refer to the listing and selected option for any stated purchase size. Adult or maximum sizes in care information describe growth potential, not a guaranteed size on arrival. Photos represent the species or color variety rather than the exact animals you will receive.

Shells, colors & markings

Shell shape, color, pattern and body coloration vary between individuals and with age. Lighting and aquarium conditions can affect how colors appear. Follow the mineral and water requirements in the species listing to support shell health. Photograph any concerning shell damage on arrival and report it promptly under the Live Arrival Guarantee.

Inactivity after shipping

Snails may remain withdrawn or inactive after shipping and can take several days to settle. Lack of movement alone does not confirm that a snail has died. Do not force a snail out of its shell. If you are concerned about its condition, photograph the unopened packaging and email us within two hours of the carrier’s recorded delivery time. Report the concern promptly even if the snail may simply be inactive; waiting several days does not extend the claim window.

Reproduction & eggs

Reproductive behavior differs by species. Some snails can reproduce readily in freshwater; others have different requirements for successful reproduction. Egg laying is not the same as successful hatching. Read the species listing before purchase rather than assuming all snails will, or will not, reproduce in your aquarium. We do not sex snails. No particular sex, male-to-female ratio or breeding pair is guaranteed.

Feeding & compatibility

Snails have different diets and habitat requirements. Do not assume every species eats algae or can live on algae alone. Assassin snails prey on other snails and are not suitable companions for a collection of ornamental snails. Use the care and compatibility information for the specific species, and check that tankmates will not injure or eat it.

Recognizing activity without forcing a response

A snail may stay retracted after shipping or become active when you are not watching. Some species have a shell door, called an operculum, while others do not; a closed shell or an unfamiliar resting position is not enough by itself to identify a loss.

Do not pull on the body, pry a shell door open or repeatedly handle a snail to make it move. If its condition concerns you, document the unopened bag and contact us within the two-hour window. The possibility of delayed activity does not change the policy’s deadline or turn an unconfirmed loss into an approved claim.

Shell appearance & damage documentation

Shell patterns, growth lines, surface texture and body colors vary with species and age. A photograph of one individual cannot show every pattern you might receive. Natural variation and a concern about physical damage are different questions.

Photograph cracks, chips, erosion or other areas that worry you, together with a wider view and the shipping label. Do not scrape, polish or alter the shell to improve the photo. Report concerning arrival damage promptly rather than assuming it must be accepted or automatically qualifies for a particular resolution.

For ongoing shell health, follow the species’ water and mineral requirements. Measure your water before adding supplements, and avoid treating all snail species as having identical needs.

Eggs, young & population expectations

We do not sex snails, and packs are not assembled to a male-to-female ratio. Snail reproductive biology varies: some species have separate sexes, while others have both reproductive functions. Do not interpret an unsexed pack as a promise that breeding cannot occur.

Ramshorn and bladder snail populations can grow in freshwater, particularly when food is plentiful. Nerites may leave eggs on hard surfaces even though successful development has different requirements from the adults’ freshwater habitat. Check the individual species rather than assuming every egg will hatch or that every snail reproduces in the same way.

A group is not a guaranteed breeding colony. The number and appearance of offspring, or the absence of eggs, cannot be predicted from representative product photos.

Feeding, predators & acclimation

Match the diet to the species. Grazing snails still need an adequate food supply, and an apparently clean aquarium may not provide enough natural grazing. Predatory species such as assassin snails have different feeding and compatibility needs from algae grazers.

Keep ornamental snails away from animals likely to bite their exposed bodies or damage their shells. Follow the specific species’ habitat and acclimation guidance, and check that any treatment used in the aquarium is appropriate for snails.

Quarantine or separate observation can help you inspect new arrivals and their behavior before adding them to an established aquarium. It is care guidance, not an extra claim requirement; follow the arrival documentation rules before transferring animals.

Bonus animals & your paid count

When inventory allows, our policy provides one bonus animal for every five ordered of the same species. Bonuses are discretionary and are not separately covered for refund or replacement. They count toward the total arriving alive when assessing whether your paid quantity was fulfilled.

For example, if you order 10 snails and receive 12, receiving 11 alive fulfills the paid count. If fewer than 10 arrive alive, the shortfall is assessed under the guarantee. Expected bonuses that were not included are not a paid-item shortage.

Checking quantities & reporting a short count

Check the actual animals received against your paid order quantity. For a suspected short count, the full policy calls for a clear counting photo showing all animals, the empty bag and the shipping label before they are introduced into an aquarium. Follow its counting instructions and contact us if you cannot document the count clearly.

Verified miscount claims are resolved with a refund for the missing paid animals under the current policy. A count made after release can be unreliable when animals hide among plants or hardscape.

Before opening: photographs & your first report

Use the email address on the original order and include all arrival concerns in the initial message to support@superiorshrimpaquatics.com within two hours of the carrier’s recorded delivery time. Photograph the sealed bag, visible and countable animals, shipping label, box and packing materials.

If the bag is leaking or damaged, photograph the leak or damage and wet packing before opening. Keep the original photographs and packaging. For cloudy water that prevents counting, take the original cloudy-water photo first and follow the full policy’s specific additional clear-container documentation instructions.

The guarantee contains restrictions on opening bags, acclimation and transfers. Review those instructions before taking action so the evidence needed to assess the claim is preserved.

Arrival problem? Document it promptly.

Email support@superiorshrimpaquatics.com within two hours of the carrier’s recorded delivery time, using the email address on your order.

  • Photograph the original sealed bag with the animals visible and countable.
  • Include the shipping label, outer box and packing materials.
  • Document any bag damage or leakage before opening.
  • Report all arrival losses in your initial message.

Read the full guarantee for photo requirements, cloudy-water documentation and claim eligibility before opening or transferring animals. Approved claims are resolved under the options and conditions stated there.

Shipping & coverage limits

Ground shipping carries increased risk for live animals, and the policy reserves the right to refuse guarantee claims on ground shipments. Choose your shipping method carefully.

The guarantee applies to the first delivery attempt. Redirection, pickup holds and carrier delays can affect eligibility under the full policy. Any product-specific coverage restrictions stated in a listing also apply.

Hitchhikers & quarantine

Live aquatic products can carry tiny hitchhikers or eggs despite inspection. Pest-free arrival is not guaranteed. We recommend quarantining new arrivals before introducing them into an established aquarium.

Returns

Care guidance in this tab does not create additional guarantee requirements or exclusions. Please read the full policies for complete eligibility, documentation, resolution and return requirements.

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