Will mystery snails and nerite snails breed with each other?

No. They are different genera and cannot crossbreed. Mystery snails lay egg clutches above the waterline while nerites deposit small white eggs on surfaces. Neither will produce hybrid offspring.

Do I need to worry about overpopulation from both species?

No for nerites (their larvae need brackish water to develop) and manageable for mystery snails (egg clutches above the waterline are easy to spot and remove before they hatch).

Can two different snail species outcompete each other for food?

Unlikely. They graze on different surfaces and both accept supplemental algae wafers, so food competition rarely becomes an issue. Just drop in a wafer if you notice either snail staying still or appearing thin.

Can Mystery Snail Live With Nerite Snail?

By Alex WalshLast reviewed Apr 18, 2026

Yes

Yes, mystery snails and nerite snails coexist peacefully in just 5 gallons, and both are excellent cleanup crew additions for planted tanks.

Why

Both species tolerate temperatures between 72-80 degrees Fahrenheit, giving them an 8-degree shared range.
Mystery snails reach 2-2.5 inches while nerites stay at 1 inch, so size difference is not an issue and neither is large enough to prey on the other.
Both prefer alkaline water (pH 7.0-8.0) and need calcium for healthy shell growth, so their mineral requirements align completely.
Mystery snails are active during the day and will cruise the tank surface while nerites work the glass and hardscape, so they do not compete for grazing territory.
Neither species shows any aggression toward the other. Snails of different species simply ignore each other in typical setups.

Minimum shared tank

5 gallons

Shared temperature range

72-80°F

What could go wrong

Mystery snails produce more bioload per individual than nerites, and both graze on algae, so in a clean tank with limited food, one or both may need supplemental feeding with algae wafers or blanched vegetables.