Staghorn Sun Snail (Clithon corona)

10 November 2026

183

The Staghorn Sun Snail, Clithon corona, is a horned nerite from tropical Indo-Pacific waters. Its ridged shell and prominent projections make it distinctive, although shell color and horn development vary considerably. It grazes algae and biofilm from hard surfaces while generally leaving healthy plants alone. Adults can live in freshwater aquariums, but their marine or brackish larval stage means sustained captive breeding is uncommon. Identification from photographs alone can be uncertain because several Clithon and related nerite species have similar forms.

Taxonomy and identification

Clithon corona is a gastropod mollusc in the family Neritidae. It is commonly recognized by a rounded, strongly ribbed shell and horn-like projections, sometimes called staghorns. The shell may be dark, olive, brown, yellow, or banded, and projections can be short, long, blunt, or partly worn. These features overlap with other horned Clithon nerites, so a photograph or retail name should not be treated as definitive species-level identification.

Natural habitat

This species is associated with tropical Indo-Pacific island and coastal waters, especially shallow streams, rocky margins, and areas influenced by estuaries. It grazes on submerged stone, wood, and other firm surfaces. Aquarium specimens tolerate freshwater, but their life cycle is linked to flowing coastal waters and includes a dispersive larval phase that requires suitable brackish or marine conditions.

Aquarium conditions

Use mature, stable water with good oxygenation and plenty of grazing surfaces. A temperature of 22–28 °C and pH of 7.2–8.2 are practical target ranges. Moderate hardness and available calcium help maintain the shell; avoid persistently acidic or very soft water. Ammonia and nitrite should remain undetectable, and nitrate should be kept low through routine maintenance. A secure lid is useful because nerites may climb above the waterline.

Feeding and grazing

The main diet is attached algae, diatoms, and biofilm collected from glass, rocks, wood, and hard plant surfaces. Do not assume an aquarium contains enough natural food merely because algae is visible. Offer small amounts of algae-based wafers or other suitable herbivore foods when surfaces are clean, and remove uneaten food promptly. Blanched vegetables can be occasional supplements. Avoid overfeeding, which can reduce water quality and encourage unwanted population growth in other snails.

Plant safety

Clithon corona is generally plant-safe. It rasps algae and soft surface growth rather than normally eating healthy leaves, so it suits planted aquariums. Tender or already damaged tissue may be grazed incidentally, especially when natural food is scarce, but extensive damage to vigorous plants is not typical. Inspect plants and hardscape when transferring snails, since eggs or other organisms may be attached.

Reproduction and larval development

Adults have separate sexes and may deposit small, conspicuous white egg capsules on rock, wood, glass, and equipment. Eggs can appear in freshwater, but normal freshwater aquarium conditions usually do not produce growing juveniles. The larvae require a suitable brackish or marine phase and specialized food and water conditions before returning to freshwater habitat. Consequently, these snails rarely reproduce successfully in ordinary freshwater community tanks.

Population control

Because successful reproduction is uncommon in freshwater, population increases usually result from purchasing or transferring additional animals rather than rapid in-tank breeding. Control numbers by limiting additions, removing unwanted adults and egg capsules manually, and avoiding excess food. Never release aquarium snails into natural waterways. Avoid copper-based treatments and other molluscicides in tanks containing nerites or other sensitive invertebrates; they can be lethal and may contaminate aquarium materials.

Snail info

Temperature : 22–28 °C
pH: 7.2–8.2

Related on Snails

Leave your comments

Latest on Snails

Thunderbolt Snail (Tylomelania perfecta)

The Thunderbolt snail is a large, attractive freshwater gastropod associated with Sulawesi’s distinctive Tylomelania fauna. It has a long, heavy shell and a dark, strongly textured body, and it usually spends much of its time grazing surfaces or searching through the substrate. Aquarium specimens should receive stable, mineral-rich water, regular vegetable or prepared foods, and protection from copper-based medications. Trade identification can be difficult because several Tylomelania species and forms are sold under overlapping common names.
Swamp cover snail (Viviparus viviparus)

Viviparus viviparus is a temperate freshwater operculate snail associated with lakes, canals, ponds, and slow-flowing waters. It is a grazing and suspension-feeding species that consumes algae, fine organic particles, and other small food resources. The supplied photographs appear to show terrestrial snails rather than Viviparus viviparus, so they should not be used for identification. Aquarium specimens require cool, well-oxygenated water, adequate mineral availability, and careful feeding to prevent poor water quality.
Staghorn Snails Mix

Staghorn snails are a trade mix of small horned nerite snails, usually associated with Clithon species in the family Neritidae. The supplied images show several shell patterns and colors, so exact species identification is uncertain. They graze algae and biofilm from aquarium surfaces without normally damaging healthy plants. Adults may lay eggs in freshwater, but their larvae generally require brackish or marine conditions, making sustained freshwater breeding unlikely.
Red Widow Rennschnecke (Vittina waigiensis)

Vittina waigiensis is a nerite snail kept for its grazing activity and striking red shell forms. It is generally peaceful, plant-safe and suited to mature freshwater aquariums with stable, mineral-rich water. Like other amphidromous nerites, it may lay eggs in freshwater, but its larvae normally require brackish or marine conditions, so routine freshwater breeding is not expected. The trade name “Red Widow” may cover a selectively colored form rather than a formally recognized taxonomic variety.
Red racing snail (Vittina waigiensis)

The red racing snail, Vittina waigiensis, is a striking nerite kept mainly for grazing algae from aquarium glass, rocks and decor. Adults are generally peaceful, plant-safe and suited to mature freshwater aquariums, but successful captive breeding is uncommon because the larvae require different conditions from the adults. Shell colors and markings vary considerably, and trade names can overlap with other nerite species, so identification from appearance alone is not completely certain.
Mixed Aquarium Snails: Algae Eaters and Clean-Up Crew

This mixed snail selection appears to include nerite-type algae grazers, ramshorn snails, and possibly Malaysian trumpet snails. Exact species and proportions cannot be confirmed from the supplied images, so care requirements may differ between batches. These peaceful invertebrates consume algae, biofilm, leftover food, and detritus, but they still need stable, mineral-rich water and responsible population management.
Red and Yellow Stripe Rennschnecke (Vittina waigiensis)

Vittina waigiensis is a striking nerite snail recognized by a rounded shell with red, yellow, orange, and dark patterning. It is primarily a freshwater grazer as an adult but has a life cycle that normally requires brackish or marine conditions for larval development. This makes it suitable for planted aquariums without normally becoming numerous. The supplied trade name and images are consistent with this identification, although shell patterns overlap among Vittina and related nerite species, so visual identification should be treated as provisional.
Ramshorn Snails Mix Rainbow

Rainbow ramshorn snails are a mixed-color freshwater aquarium form sold under a trade name rather than a single precisely identified species. The pictured animals have the characteristic planispiral shell and include blue, pink, pale and orange-red forms. They are peaceful scavengers that graze on biofilm and leftover food. Exact species and strain lineage cannot be confirmed from the supplied images alone, so care guidance is provided for commonly kept aquarium ramshorn snails.
Predatory Snail: Clea helena (Anentome helena)

Clea helena, also widely sold under the name Anentome helena, is a freshwater predatory snail from Southeast Asia. Its banded, cone-shaped shell and active hunting behavior distinguish it from common algae-grazing snails. It feeds mainly on other snails but also accepts meaty foods and carrion. In a mature aquarium it is generally safe with healthy plants, although it can reduce or eliminate desirable snail populations. Identification and classification may vary between sources, so both commonly used scientific names are included.
Pointed Mud Snail (Lymnaea stagnalis)

Lymnaea stagnalis, commonly called the pointed mud snail or great pond snail, is a freshwater pulmonate snail found in quiet, vegetated waters. Its tall, pointed shell and ability to breathe atmospheric air make it distinctive in aquaria. It can be a useful scavenger, but it reproduces readily when food is abundant. The supplied images are broadly consistent with this species, although photographs alone cannot confirm identification with complete certainty.
Pond post horn snail (Planorbarius corneus)

Planorbarius corneus is a European freshwater ramshorn snail found in ponds, lakes, marshes and slow-moving waters. Its large, planispiral shell and dark body make it a distinctive aquarium inhabitant, although the common name can be confused with other ramshorn snails. It is generally peaceful, useful as a scavenger and algae grazer, and manageable when food supplies are controlled.
Pimpled Lace Snail (Melanoides granifera)

The pimpled lace snail, Melanoides granifera, is a burrowing freshwater snail from the family Thiaridae. It spends much of its time in substrate, emerging to graze on biofilm, detritus and leftover food. Its ridged, patterned shell adds interest to planted aquariums, while its live-bearing reproduction can gradually increase its numbers. It is generally peaceful and plant-safe when adequately fed, but should be kept under observation because identification and appearance can vary among imported aquarium stock.
Pink ramshorn snail (Planorbella duryi duryi)

The pink ramshorn snail is a freshwater planorbid recognized by its flat, coiled shell and pink to reddish body. The supplied name identifies it as Planorbella duryi duryi, a subspecies associated with the southeastern United States, although shell color alone cannot confirm an exact identification. It is peaceful, air-breathing, and useful as a scavenger in planted aquariums. Like many ramshorns, it can reproduce quickly when excess food and organic debris are available.
Piano Snail (Taia naticoides)

Taia naticoides is a freshwater, live-bearing snail sold under names such as piano snail. It has a rounded, banded shell and is valued as a grazer of algae and aquarium biofilm. The supplied photographs resemble this trade identification, but images alone cannot confirm species, age, or whether the specimen is a juvenile. Good calcium availability, stable alkaline water, and regular access to natural or supplemental food are important for long-term care.
Piano Snail (Taia naticoides)

The piano snail, also sold as the brush algae snail, is a large freshwater operculate snail with a rounded, banded shell. Taia naticoides is associated with Southeast Asian freshwater habitats and is valued for grazing surface growth and consuming organic debris. Aquarium identification can be complicated because common names are applied inconsistently; confirm the species with a reliable supplier. It is generally peaceful, plant-safe and live-bearing, but it needs mineral-rich water and should not be treated as a solution for heavy algae growth.
Orange Track Racing Snail (Vittina semiconica)

The Orange Track racing snail, Vittina semiconica, is a freshwater nerite valued for algae grazing and its patterned orange shell. It is generally peaceful, plant-safe and suitable for established community aquariums. Identification from shell pattern alone can be difficult because several Vittina and related nerite species resemble one another, so the supplied trade name should be treated as provisional unless confirmed by a specialist examination.