The short answer
No — nerite snails do not reproduce in a freshwater aquarium. This is exactly why they’re so popular: you get a superb algae eater with zero risk of a population explosion. Females will still lay small white eggs on glass, decor and driftwood, but those eggs need brackish (salty) water to develop, so in a normal freshwater tank they never hatch. You’ll never wake up to a tank full of baby nerites.
Why the eggs never hatch
Nerites have a two-stage life cycle. The larvae (called veligers) require brackish water to survive, and adults must lay in freshwater but the young can only develop in salt. In a home freshwater tank that chain is broken, so the eggs are laid and then simply sit there, inert. Even a determined breeder needs a dedicated brackish setup to raise them — it’s not something that happens by accident.
Dealing with the white eggs
The eggs are harmless but some people dislike the look of them. To reduce them, keep a single nerite (a lone female with no mate still lays, but fewer). To remove them, scrape glass with an algae scraper and rub decor gently. Left alone, they eventually wear away and cause no problems.
The takeaway for stocking
Because they can’t overpopulate, nerites are ideal for anyone who wants algae control without the risk of a snail plague — unlike bladder or pond snails covered in will my snails take over my tank. If you do want breeding snails, mystery snails are the go-to — see do mystery snails need a male and female. Learn more on the nerite snail care page.