๐Ÿ  Fish Compatibility Guide

Can Diamond Tetra and Jewel Cichlid Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โš ๏ธ Use Caution โ€” Compatibility Score: 58/100
58/100 โ€” Use Caution

Diamond Tetra and Jewel Cichlid Compatibility Overview

Diamond Tetra and Jewel Cichlid can potentially coexist, but the combination requires careful attention. Their pH ranges overlap only partly, so aim for the shared band and keep it steady. Diamond Tetra is peaceful and Jewel Cichlid is aggressive. Expect chasing and fin damage unless the tank is oversized, heavily planted, and watched closely. A larger tank (minimum 75 gallons), dense planting, and close monitoring are essential.

Compatibility factors for Diamond Tetra and Jewel Cichlid
FactorDiamond TetraJewel CichlidVerdict
Temperature75โ€“82ยฐF72โ€“82ยฐFโœ… 75โ€“82ยฐF
pH Range5.5โ€“7.06.0โ€“7.8โœ… 6.0โ€“7.0
TemperamentpeacefulaggressiveโŒ Risk
Adult Size2.4 in5.9 inโš ๏ธ 2.5ร— difference
Min. Group6+2+See below
Min. Tank Size75 gallons (for both species)โ€”

Compatibility Positives

A stable shared temperature range is available.

Caution Points

Their pH ranges overlap only partly, so aim for the shared band and keep it steady.
Diamond Tetra is peaceful and Jewel Cichlid is aggressive. Expect chasing and fin damage unless the tank is oversized, heavily planted, and watched closely.

Species Profiles

Diamond Tetra โ€” Moenkhausia pittieri

Diamond Tetra and Jewel Cichlid compatibility โ€” Diamond Tetra

The Diamond Tetra is a popular freshwater fish known for its vibrant colors and peaceful nature. It is well-suited for community tanks and can thrive in a variety of water conditions. With a moderate activity level and a preference for schools, this species is a great addition to any beginner or intermediate aquarist's tank.

โ†’ Full Diamond Tetra care guide

Jewel Cichlid โ€” Hemichromis bimaculatus

Diamond Tetra and Jewel Cichlid compatibility โ€” Jewel Cichlid

The Jewel Cichlid, Hemichromis bimaculatus, is a vibrant and territorial fish popular in the aquarium trade. They require a spacious tank with hiding spots and can be moderately aggressive. With proper care, they can be a rewarding addition to the home aquarium.

โ†’ Full Jewel Cichlid care guide

Frequently Asked Questions

Can Diamond Tetra live with Jewel Cichlid?

With significant caution and a larger tank. Diamond Tetra and Jewel Cichlid can potentially coexist, but the combination requires careful attention. Their pH ranges overlap only partly, so aim for the shared band and keep it steady. Diamond Tetra is peaceful and Jewel Cichlid is aggressive. Expect chasing and fin damage unless the tank is oversized, heavily planted, and watched closely. A larger tank (minimum 75 gallons), dense planting, and close monitoring are essential.

What tank size do I need for Diamond Tetra and Jewel Cichlid together?

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

What temperature suits both Diamond Tetra and Jewel Cichlid?

75โ€“82ยฐF โ€” inside Diamond Tetra's 75โ€“82ยฐF and Jewel Cichlid's 72โ€“82ยฐF.

Is a Diamond Tetra aggressive toward a Jewel Cichlid?

Diamond Tetra is peaceful and Jewel Cichlid is aggressive. Expect chasing and fin damage unless the tank is oversized, heavily planted, and watched closely.

Related Compatibility Guides

Tank Size for Diamond Tetra and Jewel 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.