Angelfish and Blue Tang Compatibility Overview
Angelfish and Blue Tang 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: Angelfish wants 6.0โ7.5 and Blue Tang wants 8.1โ8.4. Review the behavior and water details before deciding whether to attempt the pairing.
| Factor | Angelfish | Blue Tang | Verdict |
|---|---|---|---|
| Temperature | 74โ84ยฐF | 72โ82ยฐF | โ 74โ82ยฐF |
| pH Range | 6.0โ7.5 | 8.1โ8.4 | โ No overlap |
| Temperament | semi | semi | โ ๏ธ Monitor |
| Adult Size | 6 in | 12.0 in | โ ๏ธ 2.0ร difference |
| Min. Group | 1+ | 1+ | See below |
| Min. Tank Size | 100 gallons (for both species) | โ | |
Compatibility Positives
Incompatibility Reasons
Species Profiles
Angelfish โ Pterophyllum scalare
Elegant South American cichlids with long flowing fins. Generally peaceful but territorial when breeding and will eat very small fish.
Blue Tang โ Paracanthurus hepatus
The Blue Tang is a popular saltwater fish known for its vibrant blue color and yellow stripes. These fish are generally peaceful and can be kept in a community tank with other non-aggressive species. They require a well-maintained, spacious tank with plenty of swimming space and hiding spots.
Frequently Asked Questions
Can Angelfish live with Blue Tang?
Generally not recommended. Angelfish and Blue Tang 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: Angelfish wants 6.0โ7.5 and Blue Tang wants 8.1โ8.4. Review the behavior and water details before deciding whether to attempt the pairing.
What tank size do I need for Angelfish and Blue Tang together?
A minimum of 100 gallons is recommended for keeping Angelfish and Blue Tang together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Angelfish and Blue Tang?
74โ82ยฐF โ inside Angelfish's 74โ84ยฐF and Blue Tang's 72โ82ยฐF.
Is a Angelfish aggressive toward a Blue Tang?
Angelfish is semi and Blue Tang is semi. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Angelfish and Blue Tang
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 180 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 300 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 350 gal | Best when keeping larger schools or reducing territorial pressure. |