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SnailbeginnerFreshwater

Zebra Nerite Snail

Neritina natalensis 'Zebra'

AnimaliaMolluscaGastropodaNeritidae

Variety of Nerite Snail · zebra

📍 East Africa

Ask Finn

The Zebra Nerite Snail is the most recognisable nerite variety, with a distinctly striped shell of alternating black and yellow bands that closely resembles a zebra's coat. Like all nerites it is an outstanding algae grazer — consuming green spot algae, diatoms, and film algae from glass, plants, and rockwork — and cannot reproduce in freshwater, keeping populations controlled. Hard water is essential for maintaining healthy shell integrity.

Size1"
Min Tank5g
peaceful
Zoneall

Care Guide

Diet

Zebra Nerite Snails are primarily herbivorous algae grazers that consume green spot algae, diatoms, and film algae from glass, plants, and rockwork. Supplement their diet with blanched vegetables such as zucchini, spinach, or cucumber 2-3 times weekly if algae growth is insufficient. They do not require commercial snail pellets but will benefit from occasional calcium-rich foods to maintain shell integrity.

Behavior

These snails are peaceful, slow-moving grazers that spend most of their time methodically cleaning surfaces throughout the tank. They are nocturnal and most active during evening and night hours, though they may venture out during the day in well-established tanks. Zebra Nerites are solitary and do not interact with other snails or fish; they simply coexist peacefully in the aquarium.

Breeding

Zebra Nerite Snails cannot reproduce in freshwater and will not breed in captivity, making them excellent for population control in community tanks. Breeding requires brackish water conditions that are impractical for most freshwater aquariums. This inability to breed is actually beneficial for aquarists, as it prevents overpopulation.

Common Diseases

Shell Erosion

Symptoms

Pitting, thinning, or deterioration of shell surface; visible white spots or chalky appearance

Treatment

Increase water hardness to 6-12 dGH through mineral supplements or crushed coral; ensure pH remains 7.0-8.0; provide calcium-rich foods like blanched spinach

Parasitic Infection

Symptoms

Excessive mucus production, lethargy, refusal to graze, visible parasites on shell or body

Treatment

Perform 25% water changes every 3 days; quarantine affected snails; avoid copper-based medications which are toxic to snails; improve water quality and tank cleanliness

Bacterial Infection

Symptoms

Cloudy shell, foul odor from tank, snail remaining withdrawn in shell for extended periods, visible lesions

Treatment

Perform frequent water changes (25-50% every 2-3 days); maintain optimal water parameters; ensure adequate aeration; remove uneaten food promptly

Starvation

Symptoms

Visible weight loss, reduced activity, snail remaining in shell most of the time, slow growth

Treatment

Increase algae growth by adjusting lighting or reducing tank maintenance; supplement with blanched vegetables 2-3 times weekly; ensure tank is not over-cleaned

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Quick Facts

diet
Herbivore – algae film, green spot algae, diatoms, blanched vegetables
breeding
Does not reproduce in freshwater
lifespan
1–2 years
max size
2.5 cm (1 in)
tank size
5 gallons minimum
temperament
Peaceful

Water it likes

ph
7.0–8.0
ammonia
0 ppm
nitrate
<20 ppm
hardness
6–12 dGH (hard water essential for shell health)
temperature
72–79°F (22–26°C)

Stats

Community tips0
Kept by0 hobbyists