Virgin nerite (Vitta virginea) care guide

Group
Snails
Other names
Neritina virginea, Virgin nerite snail, Vitta usnea
Family
Neritidae
Origin
Western Atlantic and Caribbean: Florida, Texas and Mexico to Brazil, including the Bahamas, Bermuda and West Indies
Water
brackish
Maximum size
2.5 cm
Care level
beginner

Care

The virgin nerite is a small, rounded nerite from the western Atlantic and Caribbean, often still sold as Neritina virginea. Its shell is semi-globular with three or four whorls and a black trapdoor (operculum), and its colour and pattern are extremely variable: black, grey, white, yellow, olive, red or purple, with stripes, waves, spots or fine lines, so no two look the same. Shells average 6–25 mm. In the wild it lives in rivers, streams, estuaries, mangroves and brackish ponds as well as the sea, on sand, silt or stones, and makes long migrations upstream. It is therefore unusually tolerant of salinity changes and can be kept in fresh, brackish or marine aquaria, although it is most at home in brackish water. Our sources give no temperature or pH figures; general guidance is tropical temperatures and hard, alkaline water, which keeps its shell healthy. Acclimatise slowly, especially when moving it between salinities. It is a peaceful algae grazer and an excellent small clean-up snail, working over glass, rock, wood and leaves. Like other nerites it may climb out of the water, so keep a tight lid with no gaps. If one lands on its back it may struggle to right itself. Copper-based medicines and some plant fertilisers are toxic to shrimp, snails and most invertebrates. Sources: Wikipedia (en.wikipedia.org/wiki/Vittavirginea). Checked October 2026.

Diet

A herbivore that grazes algae, including film algae and soft green algae, along with biofilm. In a clean tank it may run out of food; supplement with algae wafers, blanched vegetables or nori, and do not keep more nerites than the algae can support.

Breeding

Sexes are separate. In aquaria nerites often lay small white egg capsules on hard surfaces, but these do not develop into snails in fresh water. Nerite larvae drift downstream to brackish or sea water, develop in the plankton and later migrate back upstream, so the species will not overrun a freshwater tank. Raising the larvae needs salt water and plankton-sized food and is rarely successful at home (general knowledge of nerite biology; our sources only note its migrations).

Compatibility and tank mates

Peaceful and safe with fish, shrimp, plants and corals. Avoid puffers, large loaches, large crabs and other snail-eaters. In marine tanks avoid hermit crabs that may kill it for its shell.

Last updated 8 October 2026. Community-edited care guide on Aquatic-Auctions.

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