๐Ÿ  Fish Compatibility Guide

Can Glowlight Tetra and Peacock Cichlid Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โŒ Not Compatible โ€” Compatibility Score: 32/100
32/100 โ€” Not Compatible

Glowlight Tetra and Peacock Cichlid Compatibility Overview

Glowlight Tetra and Peacock Cichlid are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Their usable pH overlap is narrow and requires stable, tested water. Review the behavior and water details before deciding whether to attempt the pairing.

Compatibility factors for Glowlight Tetra and Peacock Cichlid
FactorGlowlight TetraPeacock CichlidVerdict
Temperature75โ€“82ยฐF73โ€“84ยฐFโœ… 75โ€“82ยฐF
pH Range5.5โ€“7.57.5โ€“9.0โš ๏ธ 7.5โ€“7.5 (narrow)
Temperamentpeacefulsemiโš ๏ธ Monitor
Adult Size1.6 in5.1 inโš ๏ธ 3.2ร— difference
Min. Group6+4+See below
Min. Tank Size75 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.

Incompatibility Reasons

The adult size gap creates a meaningful predation risk.
Their usable pH overlap is narrow and requires stable, tested water.

Species Profiles

Glowlight Tetra โ€” Hemigrammus erythrozonus

Glowlight Tetra and Peacock Cichlid compatibility โ€” Glowlight Tetra

The Glowlight Tetra is a vibrant, peaceful community fish known for its silver body and bright red-gold highlights. It thrives in a well-planted tank with plenty of swimming space and a gentle water flow. These tetras are easy to care for and are suitable for beginners.

โ†’ Full Glowlight Tetra care guide

Peacock Cichlid โ€” Aulonocara stuartgranti

Glowlight Tetra and Peacock Cichlid compatibility โ€” Peacock Cichlid

The Peacock Cichlid, Aulonocara nyassae, is a stunning fish with vibrant blue and yellow colors. These fish are known for their aggression and require a mature and well-maintained tank. They are best kept in pairs or in a species-specific tank. Careful attention must be given to water parameters and tank setup to ensure their health and well-being.

โ†’ Full Peacock Cichlid care guide

Frequently Asked Questions

Can Glowlight Tetra live with Peacock Cichlid?

Generally not recommended. Glowlight Tetra and Peacock Cichlid are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Their usable pH overlap is narrow and requires stable, tested water. Review the behavior and water details before deciding whether to attempt the pairing.

What tank size do I need for Glowlight Tetra and Peacock Cichlid together?

A minimum of 75 gallons is recommended for keeping Glowlight Tetra and Peacock Cichlid together. A larger tank improves water stability and reduces territorial conflict.

What temperature suits both Glowlight Tetra and Peacock Cichlid?

75โ€“82ยฐF โ€” inside Glowlight Tetra's 75โ€“82ยฐF and Peacock Cichlid's 73โ€“84ยฐF.

Is a Glowlight Tetra aggressive toward a Peacock Cichlid?

The adult size gap creates a meaningful predation risk.

Related Compatibility Guides

Tank Size for Glowlight Tetra and Peacock Cichlid

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.