Encyclopaedia

InvertebrateBrackishMarineIntermediate

Virgin nerite snail

Vitta virginea

The Virgin Nerite Snail is a small, brilliantly patterned freshwater gastropod. It is an extraordinarily adaptable algae eater that adds beauty to planted tanks.

Taxonomy

Class:Gastropoda

Order:Cycloneritida

Family:Neritidae

Genus:Vitta

Species:Vitta virginea

Formerly known as:Neritina virginea

Check out Virgin nerite snail on Atlarium

PracticeRecognition quizzesPhotos, names, origins, and puzzles to review Atlas species.Open quizzes

Water Temperature

20 - 28 °C

pH Value

7 - 8.5

Water type

Brackish / Marine

Invertebrate type

Marine snail

Adult size

2 cm

Minimum group

>= 1

8 - 20 dGH

3 - 15 dKH

TDS

150 - 450 ppm

Ecological role

Scavenger

Copper sensitivity

High

Species description

Geographical Origin and Habitat: The Virgin Nerite Snail (*Neritina virginea*) is a small, brilliantly patterned, extraordinarily adaptable gastropod natively endemic to the volatile coastal rivers, mangrove swamps, and massive estuaries of the western Atlantic Ocean, ranging from the southern United States (Florida) stretching all the way down through the Caribbean and into Brazil. Their natural biotope is defined by the severe salinity fluctuations of the intertidal zone, where rivers crash into the sea.

Taxonomy: Scientifically classified within the Neritidae family, they are significantly smaller and more delicate-looking than the bulky Olive or Zebra Nerites. Fully mature adults rarely exceed 1.0 to 1.5 centimeters (0.4-0.6 inches) in shell diameter. They possess a smooth, highly polished, drop-like or semi-globular shell completely lacking the sharp spikes of the Hedgehog Nerite. Like all true Nerites, they breathe via gills and possess a tightly fitting, D-shaped operculum to survive low tides.

Social Behavior: They are entirely peaceful, highly industrious, and strictly herbivorous grazing machines. They act as relentless, miniature biological vacuums. They spend their entire lives clamped fiercely to hard surfaces (rocks, mangrove roots, and aquarium glass), using their powerful radula to continuously rasp away microscopic algae films. Because their natural environment experiences extreme tidal shifts, they are hardwired to migrate upwards, making them notorious escape artists in open tanks.

Coloration and Sexual Dimorphism: Sexual dimorphism is visually non-existent. Their shell coloration is the reason they are highly prized, representing one of the most wildly variable and spectacularly patterned species in the aquarium hobby. No two snails look identical. The smooth, glossy shell can feature base colors of pure white, vivid yellow, deep olive, or mahogany. This base is covered in chaotic, breathtaking arrays of microscopic zigzags, stripes, dots, and netting in contrasting black, brown, or red.

Care, breeding and tankmates

Tank Setup: The aquarium architecture must reflect their need for algae grazing and their intense instinct to climb. A minimum 20-liter (5-gallon) tank is required.

CRITICAL REQUIREMENT: An absolutely tight-fitting, heavy lid is unconditionally mandatory; they possess a relentless tidal instinct to climb above the waterline and WILL escape an open aquarium to dry up on the floor. The tank MUST be mature and heavily illuminated to promote the continuous, natural growth of surface algae.

Diet and Feeding: They are voracious, unstoppable, obligate algivores (algae eaters).

CRITICAL WARNING: Virgin Nerites CANNOT be placed in pristine, "sterile," or newly cycled aquariums. They strictly consume enormous quantities of Green Spot Algae (GSA), brown diatoms, and soft green algae off glass and rocks. They will slowly starve to death if the tank lacks a steady supply of algae. They are 100% reef-safe and will absolutely never consume or damage healthy, living aquarium plants.

Water Quality: Originating from the Caribbean, they demand stable tropical heat (22-28°C / 72-82°F). Because they evolved in estuaries, they are incredible osmoregulators; they thrive equally well in 100% pure freshwater, heavy brackish water, or full marine reef setups. However, to maintain their highly polished, beautifully patterned shells, they STRICTLY require hard, alkaline water (GH 8-20, pH 7.5 - 8.4) rich in dissolved calcium. Soft, acidic freshwater will rapidly dissolve their shells.

Compatibility and Tankmates: Compatibility is universally excellent for peaceful community tanks. They are the perfect, non-intrusive miniature cleanup crew. Their small size makes them slightly more vulnerable to determined predators than larger Nerites, so they MUST NEVER be housed with massive Loaches, aggressive Cichlids, or dedicated snail-crushing Pufferfish. They are completely harmless to all fish, dwarf shrimp (Neocaridina/Caridina), and fry, making them ideal for nano-aquascapes.

Aquarium Breeding: Breeding Virgin Nerite Snails in a standard freshwater aquarium is

biologically impossible:. Females will incessantly cover the aquarium glass and hardscapes with hundreds of tiny, hard, white egg capsules that look like sesame seeds. While visually annoying, these eggs are completely harmless. The eggs strictly require a complex, fluctuating transition into brackish and full marine saltwater to successfully hatch into free-swimming veliger larvae. They will never overpopulate.

Risks and Diseases: The absolute greatest physical risk is slow, agonizing starvation; owners frequently place them in brand-new, sterile tanks completely devoid of the heavy algae growth they unconditionally require to survive. The second major risk is lethal desiccation; without a tight lid, their tidal instinct will force them out of the tank to dry up. Finally, keeping them in soft, acidic freshwater lacking calcium will lethally dissolve their beautiful shells and cause systemic organ failure.

Geographic Origin and Distribution

The Virgin Nerite Snail (*Neritina virginea*) is a small, brilliantly patterned, extraordinarily adaptable gastropod natively endemic to the volatile coastal rivers, mangrove swamps, and massive estuaries of the western Atlantic Ocean, ranging from the southern United States (Florida) stretching all the way down through the Caribbean and into Brazil. Their natural biotope is defined by the severe salinity fluctuations of the intertidal zone, where rivers crash into the sea.

Origin

Tropical oceans and reefsExtra-Amazon South AmericaCentral America and CaribbeanNorth AmericaEurope, Mediterranean, and West Asia

Invertebrate profile

Diet: Biofilm grazer
Ecological role: Scavenger
Shock sensitivity: High
Calcium and minerals: High
Molting: Shell growth
Reproduction: Oviparous
Compatibility & tankmates: Peaceful

Image gallery

Licensed images linked to the species or, when marked, to the closest representative taxon.

Related species

Recommendations grouped by close relatives, companion choices, and similar care.

Variants and close relatives

Same atlas type, nearby scientific identity, genus, or family.

Olive nerite snail

Vitta usnea

Species description

Care, breeding and tankmates

Geographic Origin and Distribution

Origin

Invertebrate profile

Image gallery

Related species

Variants and close relatives

Olive nerite snail

Black helmet nerite

Diadem nerite snail

Freshwater limpet nerite

Red racer nerite snail

River nerite snail

Spiny nerite snail

Spotted nerite snail

Thick-lipped nerite snail

Tiger nerite snail

Violet nerite snail

Winged nerite snail

Zebra Nerite Snail

Horned Nerite Snail

Zebra Nerite Snail

Recommended companions

Red Mangrove

Ciliated Cryptocoryne

Caulerpa prolifera

Chaetomorpha macroalgae

Dead man fingers algae

Halimeda macroalgae

Peacock tail algae

Red gracilaria

Red grape algae

Caulerpa taxifolia

Sea lettuce

Grape caulerpa

Two-spot bimaculatus blenny

Striped fangblenny

Tailspot blenny

Daggerblade Grass Shrimp

Similar care

Hawaiian Red Shrimp

Feeble shrimp

Ditch Shrimp

West African hermit crab

Carnifex Hermit Crab

Money Cowry

Blood-spotted Hermit Crab

Chapin's Hermit Crab

Mangrove Hermit Crab

Padavensis Hermit Crab

Gold Ring Cowrie

Ambon Hermit Crab

Stebbing's Hermit Crab

Blue-legged Boxer Shrimp

Bluntclaw snapping shrimp

Brown Turbo Snail