๐Ÿ  Fish Compatibility Guide

Can Mystery Snail and Swordtail Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โœ… Compatible โ€” Compatibility Score: 91/100
91/100 โ€” Compatible

Mystery Snail and Swordtail Compatibility Overview

Mystery Snail and Swordtail 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 55-gallon tank is recommended to provide adequate territory and water volume for both species.

Compatibility factors for Mystery Snail and Swordtail
FactorMystery SnailSwordtailVerdict
Temperature68โ€“80ยฐF65โ€“80ยฐFโœ… 68โ€“80ยฐF
pH Range7.0โ€“8.07.0โ€“8.3โœ… 7.0โ€“8.0
Temperamentpeacefulpeacefulโœ… Compatible
Adult Size2 in5 inโš ๏ธ 2.5ร— difference
Min. Group1+3+See below
Min. Tank Size55 gallons (for both species)โ€”

Compatibility Positives

A stable shared temperature range is available.
Their pH requirements overlap.
Temperament risk is relatively low when normal group sizes are maintained.

Caution Points

No major compatibility issues identified for this pair.

Species Profiles

Mystery Snail โ€” Pomacea bridgesii

Large, peaceful aquarium snails that graze on algae and detritus. Shell provides some protection but can be harassed by certain fish.

โ†’ Full Mystery Snail care guide

Swordtail โ€” Xiphophorus hellerii

Mystery Snail and Swordtail compatibility โ€” Swordtail

Hardy livebearer with a distinctive elongated lower tail fin in males. Peaceful community fish that tolerate a wide temperature range.

โ†’ Full Swordtail care guide

Frequently Asked Questions

Can Mystery Snail live with Swordtail?

Yes, in a well-planned setup. Mystery Snail and Swordtail 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 55-gallon tank is recommended to provide adequate territory and water volume for both species.

What tank size do I need for Mystery Snail and Swordtail together?

A minimum of 55 gallons is recommended for keeping Mystery Snail and Swordtail together. A larger tank improves water stability and reduces territorial conflict.

What temperature suits both Mystery Snail and Swordtail?

68โ€“80ยฐF โ€” inside Mystery Snail's 68โ€“80ยฐF and Swordtail's 65โ€“80ยฐF.

Is a Mystery Snail aggressive toward a Swordtail?

Mystery Snail is peaceful and Swordtail is peaceful. No major aggression issues are expected between these species.

Related Compatibility Guides

Tank Size for Mystery Snail and Swordtail

Use the scenario that matches the actual group sizes and temperament you plan to keep.

ScenarioTankWhen it applies
Minimum viable55 galOnly for the recommended minimum groups, mature filtration, and close monitoring.
Recommended community75 galAdds territory, swimming room, and a safer buffer for behavior.
Low-conflict setup125 galBest when keeping larger schools or reducing territorial pressure.