๐Ÿ  Fish Compatibility Guide

Can Bolivian Ram and Swordtail Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โœ… Compatible โ€” Compatibility Score: 76/100
76/100 โ€” Compatible

Bolivian Ram and Swordtail Compatibility Overview

Bolivian Ram and Swordtail can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Bolivian Ram is semi and Swordtail is peaceful, so give them room and cover rather than assuming they will ignore each other. A minimum 55-gallon tank is recommended to provide adequate territory and water volume for both species.

Compatibility factors for Bolivian Ram and Swordtail
FactorBolivian RamSwordtailVerdict
Temperature75โ€“82ยฐF65โ€“80ยฐFโœ… 75โ€“80ยฐF
pH Range6.0โ€“7.57.0โ€“8.3โš ๏ธ 7.0โ€“7.5 (narrow)
Temperamentsemipeacefulโš ๏ธ Monitor
Adult Size3.1 in5 inโœ… Similar
Min. Group2+3+See below
Min. Tank Size55 gallons (for both species)โ€”

Compatibility Positives

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

Caution Points

Their pH ranges overlap only partly, so aim for the shared band and keep it steady.

Species Profiles

Bolivian Ram โ€” Mikrogeophagus altispinosus

Bolivian Ram and Swordtail compatibility โ€” Bolivian Ram

The Bolivian Ram is a popular freshwater fish known for its vibrant colors and peaceful nature. They are well-suited for community tanks with other peaceful species. These fish are relatively easy to care for, making them a great choice for beginners. They require a well-maintained tank with a moderate water flow and plenty of space for swimming.

โ†’ Full Bolivian Ram care guide

Swordtail โ€” Xiphophorus hellerii

Bolivian Ram 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 Bolivian Ram live with Swordtail?

Yes, in a well-planned setup. Bolivian Ram and Swordtail can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Bolivian Ram is semi and Swordtail is peaceful, so give them room and cover rather than assuming they will ignore each 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 Bolivian Ram and Swordtail together?

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

What temperature suits both Bolivian Ram and Swordtail?

75โ€“80ยฐF โ€” inside Bolivian Ram's 75โ€“82ยฐF and Swordtail's 65โ€“80ยฐF.

Is a Bolivian Ram aggressive toward a Swordtail?

Bolivian Ram is semi and Swordtail is peaceful. No major aggression issues are expected between these species.

Related Compatibility Guides

Tank Size for Bolivian Ram 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.