๐Ÿ  Fish Compatibility Guide

Can Flame Angelfish and Keyhole Cichlid Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โŒ Not Compatible โ€” Compatibility Score: 0/100
0/100 โ€” Not Compatible

Flame Angelfish and Keyhole Cichlid Compatibility Overview

Flame Angelfish and Keyhole Cichlid are generally not recommended to be housed together. One of these is a marine species and the other is not; they cannot share one aquarium. Their pH ranges do not meet: Flame Angelfish wants 8.1โ€“8.4 and Keyhole Cichlid wants 4.0โ€“7.5. Review the behavior and water details before deciding whether to attempt the pairing.

Compatibility factors for Flame Angelfish and Keyhole Cichlid
FactorFlame AngelfishKeyhole CichlidVerdict
Temperature72โ€“82ยฐF70โ€“82ยฐFโœ… 72โ€“82ยฐF
pH Range8.1โ€“8.44.0โ€“7.5โŒ No overlap
Temperamentsemipeacefulโš ๏ธ Monitor
Adult Size4.0 in4.3 inโœ… Similar
Min. Group1+2+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.

Incompatibility Reasons

One of these is a marine species and the other is not; they cannot share one aquarium.
Their pH ranges do not meet: Flame Angelfish wants 8.1โ€“8.4 and Keyhole Cichlid wants 4.0โ€“7.5.

Species Profiles

Flame Angelfish โ€” Centropyge loricula

Flame Angelfish and Keyhole Cichlid compatibility โ€” Flame Angelfish

The Flame Angelfish is a popular choice for saltwater aquariums due to its vibrant coloration and peaceful nature. It requires a spacious tank with plenty of swimming space and a stable water environment. With proper care, it can thrive in a community tank with compatible species.

โ†’ Full Flame Angelfish care guide

Keyhole Cichlid โ€” Cleithracara maronii

Flame Angelfish and Keyhole Cichlid compatibility โ€” Keyhole Cichlid

The Keyhole Cichlid is a popular choice for beginners due to its relatively easy care and peaceful temperament. These fish are known for their distinct keyhole marking and vibrant coloration. They do well in a community tank with other peaceful species, but should be provided with plenty of hiding spots to feel secure.

โ†’ Full Keyhole Cichlid care guide

Frequently Asked Questions

Can Flame Angelfish live with Keyhole Cichlid?

Generally not recommended. Flame Angelfish and Keyhole Cichlid are generally not recommended to be housed together. One of these is a marine species and the other is not; they cannot share one aquarium. Their pH ranges do not meet: Flame Angelfish wants 8.1โ€“8.4 and Keyhole Cichlid wants 4.0โ€“7.5. Review the behavior and water details before deciding whether to attempt the pairing.

What tank size do I need for Flame Angelfish and Keyhole Cichlid together?

A minimum of 55 gallons is recommended for keeping Flame Angelfish and Keyhole Cichlid together. A larger tank improves water stability and reduces territorial conflict.

What temperature suits both Flame Angelfish and Keyhole Cichlid?

72โ€“82ยฐF โ€” inside Flame Angelfish's 72โ€“82ยฐF and Keyhole Cichlid's 70โ€“82ยฐF.

Is a Flame Angelfish aggressive toward a Keyhole Cichlid?

Flame Angelfish is semi and Keyhole Cichlid is peaceful. No major aggression issues are expected between these species.

Related Compatibility Guides

Tank Size for Flame Angelfish and Keyhole Cichlid

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 setup100 galBest when keeping larger schools or reducing territorial pressure.