Cardinal Tetra and Nerite Snail Compatibility Overview
Cardinal Tetra and Nerite Snail can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Both species are peaceful, and neither poses a major aggression risk to the other. A minimum 20-gallon tank is recommended to provide adequate territory and water volume for both species.
| Factor | Cardinal Tetra | Nerite Snail | Verdict |
|---|---|---|---|
| Temperature | 73โ82ยฐF | 65โ85ยฐF | โ 73โ82ยฐF |
| pH Range | 4.5โ7.0 | 6.5โ8.5 | โ ๏ธ 6.5โ7.0 (narrow) |
| Temperament | peaceful | peaceful | โ Compatible |
| Adult Size | 1.5 in | 1 in | โ Similar |
| Min. Group | 6+ | 1+ | See below |
| Min. Tank Size | 20 gallons (for both species) | โ | |
Compatibility Positives
Caution Points
Species Profiles
Cardinal Tetra โ Paracheirodon axelrodi
Brilliant red-and-blue schooling fish from the Rio Negro. Prefers soft, acidic, warm water โ a natural companion for discus.
โ Full Cardinal Tetra care guide
Nerite Snail โ Nerita spp.
Outstanding algae-eating snails that do not reproduce in freshwater. Extremely hardy and compatible with virtually all peaceful fish.
Frequently Asked Questions
Can Cardinal Tetra live with Nerite Snail?
Yes, in a well-planned setup. Cardinal Tetra and Nerite Snail can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Both species are peaceful, and neither poses a major aggression risk to the other. A minimum 20-gallon tank is recommended to provide adequate territory and water volume for both species.
What tank size do I need for Cardinal Tetra and Nerite Snail together?
A minimum of 20 gallons is recommended for keeping Cardinal Tetra and Nerite Snail together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Cardinal Tetra and Nerite Snail?
73โ82ยฐF โ inside Cardinal Tetra's 73โ82ยฐF and Nerite Snail's 65โ85ยฐF.
Is a Cardinal Tetra aggressive toward a Nerite Snail?
Cardinal Tetra is peaceful and Nerite Snail is peaceful. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Cardinal Tetra and Nerite Snail
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 20 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 29 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 55 gal | Best when keeping larger schools or reducing territorial pressure. |