Percula Clownfish and Rainbow Shark Compatibility Overview
Percula Clownfish and Rainbow Shark 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: Percula Clownfish wants 8.1โ8.4 and Rainbow Shark wants 6.5โ7.5. Review the behavior and water details before deciding whether to attempt the pairing.
| Factor | Percula Clownfish | Rainbow Shark | Verdict |
|---|---|---|---|
| Temperature | 74โ82ยฐF | 72โ79ยฐF | โ 74โ79ยฐF |
| pH Range | 8.1โ8.4 | 6.5โ7.5 | โ No overlap |
| Temperament | semi | semi | โ ๏ธ Monitor |
| Adult Size | 3.0 in | 6 in | โ ๏ธ 2.0ร difference |
| Min. Group | 2+ | 1+ | See below |
| Min. Tank Size | 55 gallons (for both species) | โ | |
Compatibility Positives
Incompatibility Reasons
Species Profiles
Percula Clownfish โ Amphiprion percula
The Percula Clownfish, also known as the False Percula, is a popular beginner fish due to its hardiness and striking coloration. These fish are best kept in a saltwater tank with a minimum size of 30 gallons and compatible tankmates. They are peaceful, non-aggressive and do well in groups with other compatible species.
โ Full Percula Clownfish care guide
Rainbow Shark โ Epalzeorhynchos frenatum
Active bottom dweller that becomes territorial at maturity. One per tank; avoid other shark-like or bottom-dwelling species.
Frequently Asked Questions
Can Percula Clownfish live with Rainbow Shark?
Generally not recommended. Percula Clownfish and Rainbow Shark 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: Percula Clownfish wants 8.1โ8.4 and Rainbow Shark wants 6.5โ7.5. Review the behavior and water details before deciding whether to attempt the pairing.
What tank size do I need for Percula Clownfish and Rainbow Shark together?
A minimum of 55 gallons is recommended for keeping Percula Clownfish and Rainbow Shark together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Percula Clownfish and Rainbow Shark?
74โ79ยฐF โ inside Percula Clownfish's 74โ82ยฐF and Rainbow Shark's 72โ79ยฐF.
Is a Percula Clownfish aggressive toward a Rainbow Shark?
Percula Clownfish is semi and Rainbow Shark is semi. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Percula Clownfish and Rainbow Shark
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. |