๐Ÿ  Fish Compatibility Guide

Can Bristlenose Pleco and Red Eye Tetra Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โœ… Compatible โ€” Compatibility Score: 92/100
92/100 โ€” Compatible

Bristlenose Pleco and Red Eye Tetra Compatibility Overview

Bristlenose Pleco and Red Eye Tetra can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Bristlenose Pleco is peaceful and Red Eye Tetra is semi, so give them room and cover rather than assuming they will ignore each other. A minimum 75-gallon tank is recommended to provide adequate territory and water volume for both species.

Compatibility factors for Bristlenose Pleco and Red Eye Tetra
FactorBristlenose PlecoRed Eye TetraVerdict
Temperature60โ€“80ยฐF72โ€“79ยฐFโœ… 72โ€“79ยฐF
pH Range6.5โ€“7.56.0โ€“8.0โœ… 6.5โ€“7.5
Temperamentpeacefulsemiโš ๏ธ Monitor
Adult Size5 in2.8 inโœ… Similar
Min. Group1+6+See below
Min. Tank Size75 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

Bristlenose Pleco โ€” Ancistrus sp.

Bristlenose Pleco and Red Eye Tetra compatibility โ€” Bristlenose Pleco

Hardy armoured catfish that grazes on algae. Peaceful with virtually all species; tolerates a wide temperature range.

โ†’ Full Bristlenose Pleco care guide

Red Eye Tetra โ€” Moenkhausia sanctaefilomenae

Bristlenose Pleco and Red Eye Tetra compatibility โ€” Red Eye Tetra

The Red Eye Tetra is a popular freshwater fish known for its vibrant red eyes and sleek, silver body. They are generally peaceful and can be kept in a community tank with other non-aggressive species. Their moderate activity level makes them suitable for a variety of aquarium setups. With proper care, they can live up to 5 years.

โ†’ Full Red Eye Tetra care guide

Frequently Asked Questions

Can Bristlenose Pleco live with Red Eye Tetra?

Yes, in a well-planned setup. Bristlenose Pleco and Red Eye Tetra can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Bristlenose Pleco is peaceful and Red Eye Tetra is semi, so give them room and cover rather than assuming they will ignore each other. A minimum 75-gallon tank is recommended to provide adequate territory and water volume for both species.

What tank size do I need for Bristlenose Pleco and Red Eye Tetra together?

A minimum of 75 gallons is recommended for keeping Bristlenose Pleco and Red Eye Tetra together. A larger tank improves water stability and reduces territorial conflict.

What temperature suits both Bristlenose Pleco and Red Eye Tetra?

72โ€“79ยฐF โ€” inside Bristlenose Pleco's 60โ€“80ยฐF and Red Eye Tetra's 72โ€“79ยฐF.

Is a Bristlenose Pleco aggressive toward a Red Eye Tetra?

Bristlenose Pleco is peaceful and Red Eye Tetra is semi. No major aggression issues are expected between these species.

Related Compatibility Guides

Tank Size for Bristlenose Pleco and Red Eye Tetra

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

ScenarioTankWhen it applies
Minimum viable75 galOnly for the recommended minimum groups, mature filtration, and close monitoring.
Recommended community125 galAdds territory, swimming room, and a safer buffer for behavior.
Low-conflict setup150 galBest when keeping larger schools or reducing territorial pressure.