Nerite Snail
Neritina natalensis
Quick Facts
- Adult Size
- 1 in
- Minimum Tank
- 5 gal
- Recommended Tank
- 10 gal+
- Temperature
- 70–80°F
- pH
- 7–8.2
- Hardness
- 8–20 dGH (Hard)
- Temperament
- peaceful
- Schooling
- Solitary
- Lifespan
- 1–2 yrs
- Diet
- herbivore
- Care Level
- easy
Overview
The best algae-eating snail for planted tanks — voracious on glass and leaves, and its eggs never hatch in freshwater, so no population explosions. Needs hard, mineral-rich water to keep its shell intact.
Tank Requirements
- Minimum footprint: 5 gallons; a 10+ gallon tank gives real swimming room.
- Preferred swimming zone: bottom of the water column.
- Happy alone or as a compatible pair; avoid crowding with conspecifics.
- Care level: easy.
Water Parameters
- Temperature: 70–80°F
- pH: 7–8.2
- Hardness: 8–20 dGH (Hard)
Stable parameters matter more than perfect ones — aim for consistency before chasing an exact number.
Temperament
peaceful
invertebratealgae-grazerhard-shellhard-waterno-freshwater-breeding
Feeding
A herbivore / grazer — it needs plant matter and algae. Offer blanched vegetables, algae wafers, and a mature tank with surfaces to graze.
Tank Mates
Fish to Avoid
- Angelfish — Occasional chasing or fin nipping is possible.
- Bolivian Ram — Occasional chasing or fin nipping is possible.
- Dwarf Gourami — Occasional chasing or fin nipping is possible.
- Tiger Barb — Occasional chasing or fin nipping is possible.
- Yoyo Loach — Occasional chasing or fin nipping is possible.
- Kribensis — Occasional chasing or fin nipping is possible.
Recommended Tank Sizes
Standard tanks at or above the recommended 10 gallons:
Stocking Considerations
- Start from a 5 gallon minimum and plan the full group size before you buy.
- Activity level is low, which affects how much of the tank it uses and how much it adds to the bioload.
- Zoning matters: this species lives mostly in the bottom zone, so choose tank mates that occupy other levels.
Compatibility
Compatibility depends on tank size, water chemistry, temperament, and adult size. Run a full check against any species in our database.
In-depth guides for Nerite Snail:
Check Nerite Snail tank matesSources
- FishBase(Scientific Database, accessed 2026-09-20)
- SeriouslyFish(Specialist Publication, accessed 2026-09-20)
- Aquarium Forge editorial guidelines(Editorial Interpretation, accessed 2026-09-22)
Data reviewed: September 2026 · Data version: 2026.11
Editorial note: Minimum tank recommendations may vary by source and husbandry approach. Our figures synthesise the sources above for planning purposes.
Related Tools
Last reviewed: · Data version 2026.11