Can Corydoras and Green Terror Cichlid Live Together?

Corydoras and Green Terror Cichlid Compatibility Overview

Corydoras Catfish and Green Terror Cichlid are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Corydoras Catfish is peaceful and Green Terror Cichlid is aggressive. Expect chasing and fin damage unless the tank is oversized, heavily planted, and watched closely. Review the behavior and water details before deciding whether to attempt the pairing.

Compatibility factors for Corydoras Catfish and Green Terror Cichlid
Factor	Corydoras Catfish	Green Terror Cichlid	Verdict
Temperature	70–79°F	68–75°F	✅ 70–75°F
pH Range	6.0–8.0	6.5–8.0	✅ 6.5–8.0
Temperament	peaceful	aggressive	❌ Risk
Adult Size	2.5 in	11.8 in	❌ 5× difference
Min. Group	6+	1+	See below
Min. Tank Size	100 gallons (for both species)		—

Compatibility Positives

A stable shared temperature range is available.

Their pH requirements overlap.

Incompatibility Reasons

The adult size gap creates a meaningful predation risk.

Corydoras Catfish is peaceful and Green Terror Cichlid is aggressive. Expect chasing and fin damage unless the tank is oversized, heavily planted, and watched closely.

Species Profiles

Corydoras Catfish — Corydoras spp.

Corydoras and Green Terror Cichlid compatibility — Corydoras Catfish

Armoured bottom-dwelling catfish that are peaceful with all non-aggressive species. Need fine sand substrate to protect delicate barbels.

→ Full Corydoras Catfish care guide

Green Terror Cichlid — Andinoacara rivulatus

Corydoras and Green Terror Cichlid compatibility — Green Terror Cichlid

The Green Terror Cichlid is a popular choice for experienced aquarists due to its striking appearance and vibrant colors. They are known for their aggression and should be kept in a species-specific tank. Their tall, laterally compressed bodies and vivid coloration make them visually appealing but require careful handling due to their potentially aggressive…

→ Full Green Terror Cichlid care guide

Frequently Asked Questions

Can Corydoras Catfish live with Green Terror Cichlid?

Generally not recommended. Corydoras Catfish and Green Terror Cichlid are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Corydoras Catfish is peaceful and Green Terror Cichlid is aggressive. Expect chasing and fin damage unless the tank is oversized, heavily planted, and watched closely. Review the behavior and water details before deciding whether to attempt the pairing.

What tank size do I need for Corydoras Catfish and Green Terror Cichlid together?

A minimum of 100 gallons is recommended for keeping Corydoras Catfish and Green Terror Cichlid together. A larger tank improves water stability and reduces territorial conflict.

What temperature suits both Corydoras Catfish and Green Terror Cichlid?

70–75°F — inside Corydoras Catfish's 70–79°F and Green Terror Cichlid's 68–75°F.

Is a Corydoras Catfish aggressive toward a Green Terror Cichlid?

The adult size gap creates a meaningful predation risk.

Related Compatibility Guides

Tank Size for Corydoras and Green Terror Cichlid

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

Scenario	Tank	When it applies
Minimum viable	100 gal	Only for the recommended minimum groups, mature filtration, and close monitoring.
Recommended community	150 gal	Adds territory, swimming room, and a safer buffer for behavior.
Low-conflict setup	220 gal	Best when keeping larger schools or reducing territorial pressure.

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