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Zebra Nerite Snail
Neritina natalensis 'Zebra'
Animalia›Mollusca›Gastropoda›Neritidae
Variety of Nerite Snail · zebra
📍 East Africa
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.
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.
Tank Mates
Similar algae-grazing behavior and peaceful temperament; both thrive in clean, well-maintained tanks
Complementary algae eaters with identical water parameter requirements and peaceful coexistence
Peaceful invertebrates that occupy different feeding niches; ensure adequate hard water for both species
Peaceful fish that ignore snails and thrive in similar warm, hard water conditions
Small, peaceful schooling fish that do not disturb snails; ensure adequate hard water buffering
Common Diseases
Shell Erosion
Pitting, thinning, or deterioration of shell surface; visible white spots or chalky appearance
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
Excessive mucus production, lethargy, refusal to graze, visible parasites on shell or body
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
Cloudy shell, foul odor from tank, snail remaining withdrawn in shell for extended periods, visible lesions
Perform frequent water changes (25-50% every 2-3 days); maintain optimal water parameters; ensure adequate aeration; remove uneaten food promptly
Starvation
Visible weight loss, reduced activity, snail remaining in shell most of the time, slow growth
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)