Bristlenose Pleco and Keyhole Cichlid Compatibility Overview
Bristlenose Pleco and Keyhole Cichlid can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Both species are peaceful, and neither poses a major aggression risk to the other. A minimum 55-gallon tank is recommended to provide adequate territory and water volume for both species.
| Factor | Bristlenose Pleco | Keyhole Cichlid | Verdict |
|---|---|---|---|
| Temperature | 60โ80ยฐF | 70โ82ยฐF | โ 70โ80ยฐF |
| pH Range | 6.5โ7.5 | 4.0โ7.5 | โ 6.5โ7.5 |
| Temperament | peaceful | peaceful | โ Compatible |
| Adult Size | 5 in | 4.3 in | โ Similar |
| Min. Group | 1+ | 2+ | See below |
| Min. Tank Size | 55 gallons (for both species) | โ | |
Compatibility Positives
Caution Points
Species Profiles
Bristlenose Pleco โ Ancistrus sp.
Hardy armoured catfish that grazes on algae. Peaceful with virtually all species; tolerates a wide temperature range.
โ Full Bristlenose Pleco care guide
Keyhole Cichlid โ Cleithracara maronii
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.
Frequently Asked Questions
Can Bristlenose Pleco live with Keyhole Cichlid?
Yes, in a well-planned setup. Bristlenose Pleco and Keyhole Cichlid can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Both species are peaceful, and neither poses a major aggression risk to the other. A minimum 55-gallon tank is recommended to provide adequate territory and water volume for both species.
What tank size do I need for Bristlenose Pleco and Keyhole Cichlid together?
A minimum of 55 gallons is recommended for keeping Bristlenose Pleco and Keyhole Cichlid together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Bristlenose Pleco and Keyhole Cichlid?
70โ80ยฐF โ inside Bristlenose Pleco's 60โ80ยฐF and Keyhole Cichlid's 70โ82ยฐF.
Is a Bristlenose Pleco aggressive toward a Keyhole Cichlid?
Bristlenose Pleco is peaceful and Keyhole Cichlid is peaceful. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Bristlenose Pleco and Keyhole Cichlid
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 55 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 75 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 100 gal | Best when keeping larger schools or reducing territorial pressure. |