Angelfish and Red Eye Tetra Compatibility Overview
Angelfish and Red Eye Tetra can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Angelfish is semi and Red Eye Tetra is semi, 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 | Red Eye Tetra | Verdict |
|---|---|---|---|
| Temperature | 74โ84ยฐF | 72โ79ยฐF | โ 74โ79ยฐF |
| pH Range | 6.0โ7.5 | 6.0โ8.0 | โ 6.0โ7.5 |
| Temperament | semi | semi | โ ๏ธ Monitor |
| Adult Size | 6 in | 2.8 in | โ ๏ธ 2.1ร 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.
Red Eye Tetra โ Moenkhausia sanctaefilomenae
The Red Eye Tetra is a popular freshwater fish known for its vibrant red eyes and sleek, silver body. They are generally peaceful and can be kept in a community tank with other non-aggressive species. Their moderate activity level makes them suitable for a variety of aquarium setups. With proper care, they can live up to 5 years.
Frequently Asked Questions
Can Angelfish live with Red Eye Tetra?
Yes, in a well-planned setup. Angelfish and Red Eye Tetra can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Angelfish is semi and Red Eye Tetra is semi, 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 Red Eye Tetra together?
A minimum of 75 gallons is recommended for keeping Angelfish and Red Eye Tetra together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Angelfish and Red Eye Tetra?
74โ79ยฐF โ inside Angelfish's 74โ84ยฐF and Red Eye Tetra's 72โ79ยฐF.
Is a Angelfish aggressive toward a Red Eye Tetra?
Angelfish is semi and Red Eye Tetra is semi. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Angelfish and Red Eye 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. |