Olive Nerite Snail (Neritina reclivata)

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Freshwater Snails

Olive Nerite Snail

A smooth, naturally patterned nerite with a muted olive-green to tan shell -- exceptional continuous algae grazing, zero freshwater reproduction, and complete compatibility with all shrimp.

Smooth Olive-Green to Tan Shell Controlled Algae Grazer Cannot Breed in Freshwater Stable Population Safe with Shrimp GH 6+ for Shell Health

Olive Nerite Snails (Neritina reclivata) are a smooth-shelled freshwater nerite with a subtly beautiful natural shell -- a rounded, elongated oval in muted olive-green to yellow-tan tones, sometimes showing faint banding or speckling that varies between individuals. Where Zebra Nerites and Horned Nerites carry bold graphic shell patterns, Olive Nerites carry a quieter, more naturalistic shell aesthetic that reads as a considered, understated addition to a planted or hardscape tank rather than a pattern statement. The shell surface is smooth and rounded with a low spire, giving each snail a clean, streamlined profile against driftwood and stone. In terms of function they perform identically to all other nerite species: exceptional continuous algae grazing across every tank surface, zero population expansion in freshwater, and complete safety with all shrimp and other invertebrates. Olive Nerites are one of the more actively moving nerites -- they cover substantial surface area per day and are frequently visible on glass, driftwood, broad plant leaves, and substrate simultaneously across the course of a single day. Safe with all Neocaridina, Caridina, and other snails.

What to Expect

Shell, Grazing and Behaviour

Smooth olive-green to tan shell with a naturalistic muted aesthetic -- the shell of Olive Nerites is a smooth, elongated oval with a low spire and a muted colour palette in the olive-green to yellow-tan range -- sometimes nearly uniform in colour, sometimes showing faint irregular banding or speckling that varies between individuals. The smooth surface and rounded profile read as clean and naturalistic against hardscape and plant backgrounds, complementing a planted tank aesthetic without competing with it. The shell does not carry the high-contrast graphic patterning of Zebra or Tiger Nerites -- its appeal is in its quiet, natural quality rather than its visual boldness. Exceptional continuous algae grazing -- the primary function of all nerites -- Olive Nerites graze algae from every tank surface continuously throughout the day: glass panels, driftwood surfaces, stone, broad plant leaves including Anubias, and substrate. The rasping movement of the radula across surfaces is visible at close range and the cleaned path left behind on glass is immediately apparent after a nerite has passed. In a tank with moderate algae accumulation, a small group of Olive Nerites produces visibly cleaner glass and hardscape surfaces within one to two weeks of introduction. Cannot breed in freshwater -- population stays exactly at introduction number -- nerite larvae require brackish or marine water to develop. No breeding occurs in a standard freshwater tank, and no eggs develop into juvenile snails regardless of how many eggs are laid. The number of Olive Nerites introduced is the number you will have indefinitely. The white calcified eggs that nerites deposit on hardscape and glass are the only evidence of reproductive activity in freshwater and are harmless, though they can be difficult to remove once fully calcified. Stable population -- stock to the required grazing load and leave it there -- because Olive Nerites cannot reproduce in freshwater, population management is entirely in the keeper's control. The recommended stocking rate is one nerite per 10-15 litres for maintenance-level grazing in a tank with moderate light and good plant growth. In tanks with persistent algae problems, stock at the higher end temporarily; in well-balanced planted tanks, the lower end of the range provides adequate maintenance grazing without overgrazing the biofilm surfaces that shrimp depend on. GH 6+ is required for shell health and integrity -- nerite shells, like all snail shells, require adequate dissolved calcium for maintenance and growth. In water with GH below 6, shell erosion appears as pitting, thinning, or white chalky patches on the shell surface, typically beginning at the spire and progressing toward the aperture. In GH 6+ water the smooth olive-tan shell maintains its integrity and natural lustre throughout the snail's life. In Caridina tanks with soft, low-GH water, monitor shell condition closely and supplement with cuttlebone or crushed coral if erosion is observed. Active across all surfaces throughout the day -- frequently visible -- Olive Nerites are among the more active nerite species in terms of the surface area they cover per day. It is typical to find individuals on the front glass in the morning, on driftwood at midday, and on the substrate surface or rear glass in the evening -- a full circuit of the tank in the course of a single day. This continuous movement makes them reliably visible and engaging rather than spending long periods hidden or inactive.

How to Set It Up

Getting Started

1Confirm GH 6+ before introduction -- test GH before adding Olive Nerites. In tanks with GH below 6, supplement with a GH-raising mineral or add cuttlebone to the tank before introduction to support shell integrity from day one.

2Float acclimate for 15-20 minutes -- nerites are less sensitive to parameter transitions than shrimp but still benefit from temperature equalisation. Float the bag for 15-20 minutes before release. A brief drip of 15-20 minutes is an optional additional step that reduces stress further.

3Stock at one per 10-15 litres for maintenance grazing -- introduce the number appropriate to the tank volume and the current algae load. In a new tank with little algae, supplement with algae wafers or blanched vegetables until tank algae establishes. Nerites that cannot find sufficient algae in a new tank will starve.

4Cover the tank -- nerites escape readily and do not survive out of water -- Olive Nerites climb above the waterline and will exit an uncovered tank. Ensure all openings including filter return gaps, surface skimmer slots, and lid gaps are covered or blocked. A nerite found outside the tank will not survive unless returned to water quickly.

Bonus Tip

Olive Nerites are one of the most practically effective snails for cleaning broad-leafed plants -- Anubias, Cryptocoryne, and Java Fern all develop algae on their broad leaf surfaces that is difficult to address without disturbing the plants or scrubbing leaves manually. Olive Nerites move across broad leaf surfaces readily, rasping algae from the leaf face without damaging the leaf tissue, and their smooth rounded shell profile allows them to navigate between dense plant arrangements without dislodging leaves from their attachment points on hardscape. A single Olive Nerite working across an established Anubias plant cleans the leaf surfaces more completely and more gently than any manual intervention.

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Browse more freshwater snails

Pair Olive Nerites with Zebra Nerites, Mystery Snails, or Ramshorns for a complete cleanup crew. Browse our Freshwater Snails collection.

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Before placing your order, please review our DOA Policy Shipping Info

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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.

Live Arrival Guarantee

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.

Shipping Information

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

Return Policy

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.

Olive Nerite Snail (Neritina reclivata)

$4.50

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Olive Nerite Snail (Neritina reclivata)