Angelfish and Diamond Tetra Compatibility Overview
Angelfish and Diamond Tetra can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Angelfish is semi and Diamond Tetra is peaceful, so give them room and cover rather than assuming they will ignore each other. A minimum 75-gallon tank is recommended to provide adequate territory and water volume for both species.
| Factor | Angelfish | Diamond Tetra | Verdict |
|---|---|---|---|
| Temperature | 74โ84ยฐF | 75โ82ยฐF | โ 75โ82ยฐF |
| pH Range | 6.0โ7.5 | 5.5โ7.0 | โ 6.0โ7.0 |
| Temperament | semi | peaceful | โ ๏ธ Monitor |
| Adult Size | 6 in | 2.4 in | โ ๏ธ 2.5ร difference |
| Min. Group | 1+ | 6+ | See below |
| Min. Tank Size | 75 gallons (for both species) | โ | |
Compatibility Positives
Caution Points
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.
Diamond Tetra โ Moenkhausia pittieri
The Diamond Tetra is a popular freshwater fish known for its vibrant colors and peaceful nature. It is well-suited for community tanks and can thrive in a variety of water conditions. With a moderate activity level and a preference for schools, this species is a great addition to any beginner or intermediate aquarist's tank.
Frequently Asked Questions
Can Angelfish live with Diamond Tetra?
Yes, in a well-planned setup. Angelfish and Diamond Tetra can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Angelfish is semi and Diamond Tetra is peaceful, so give them room and cover rather than assuming they will ignore each other. A minimum 75-gallon tank is recommended to provide adequate territory and water volume for both species.
What tank size do I need for Angelfish and Diamond Tetra together?
A minimum of 75 gallons is recommended for keeping Angelfish and Diamond Tetra together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Angelfish and Diamond Tetra?
75โ82ยฐF โ inside Angelfish's 74โ84ยฐF and Diamond Tetra's 75โ82ยฐF.
Is a Angelfish aggressive toward a Diamond Tetra?
Angelfish is semi and Diamond Tetra is peaceful. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Angelfish and Diamond Tetra
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 75 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 125 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 150 gal | Best when keeping larger schools or reducing territorial pressure. |