Zebra Nerite Snail

Environment

It appreciates rather hard water and a neutral to slightly alkaline pH, ideally above 7. A well-established aquarium with surfaces colonized by algae suits it perfectly. Make sure to cover the aquarium as it can escape out of the water and it tolerates high nitrates poorly.

Feeding

It constantly grazes on green algae and diatoms on decorations, glass and plants. If algae are lacking, supplement with algae-based pellets or blanched vegetables like zucchini. Avoid any treatment containing copper, which is toxic to invertebrates.

Health & common diseases

The zebra nerite snail is a hardy snail but sensitive to calcium deficiencies, essential for the strength of its shell. A shell that whitens, cracks or crumbles indicates a pH that is too acidic or a lack of minerals. It is particularly vulnerable to copper (found in certain medications and fertilizers) which can be fatal even at low doses. To prevent problems, maintain a stable pH (7–8), sufficient hardness (GH > 6) and avoid any copper-based treatment.

Tips & tankmates

The nerite does not reproduce in freshwater: it lays small white capsules that will never hatch without brackish water. This prevents any proliferation but the egg clutches can be unsightly on decorations. Handle it gently and never leave it upside down for too long.

Sources