Compare these two in the visual aquarium planner
Transfers the two species into an editable 30 US gal example with count one each. This is not a stocking recommendation.
Troubleshooting community setups: see the compatibility result using temperature, pH, GH/KH, adult size, behavior, schooling needs, and predator/prey rules.
Short answer: No, this pairing should usually be avoided. Plan for at least 5 gallons before adjusting for group size, filtration, and aquascape layout.
Data confidence: medium
nerite snail | betta | nerite snail | betta
Yes, this is a major risk. Adult Betta reach about 3", while Nerite Snail stay near 1". That size gap can turn Nerite Snail into prey, especially at night, during feeding, or once the larger fish is fully grown.
A compatibility score checks adult size, temperature, pH, hardness, temperament, and tank volume. Real tanks add variables the score cannot see directly: feeding aggression, cave ownership, plant cover, and whether fish can constantly see each other.
Nerite Snail and Betta use different swim zones, but feeding time and open sightlines can still change behavior. Start with at least 5 gallons, then use hardscape, tall plants, and separated feeding zones to reduce chasing before it becomes a pattern.
Observed photo context
These photos show observed aquarium setups for the selected species. They are useful context, but they do not change the compatibility result or replace tank-size, temperament, group-size, and water-parameter checks.
Confidence: medium. Aggression, predator/prey, shrimp risk, schooling, and tank size rules are evaluated from curated freshwater attributes.
No, this pairing should usually be avoided. Main reasons: predator/prey risk, aggression risk.
Plan at least 5 gallons before adjusting for group size, filtration, and aquascape layout.
Problems can happen even when the gallon number is technically adequate. Check feeding order, repeated access to the same cave or plant mass, school size, and whether the aquascape gives either fish a direct line of sight across the whole tank.
Use tall plants, rock piles, driftwood, and separate feeding stations so a dominant fish cannot patrol one open lane from end to end.