Black Neon Tetra and Red Eye Tetra Compatibility Overview
Black Neon Tetra and Red Eye Tetra can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Black Neon Tetra is peaceful and Red Eye Tetra is semi, so give them room and cover rather than assuming they will ignore each other. A minimum 20-gallon tank is recommended to provide adequate territory and water volume for both species.
| Factor | Black Neon Tetra | Red Eye Tetra | Verdict |
|---|---|---|---|
| Temperature | 68โ82ยฐF | 72โ79ยฐF | โ 72โ79ยฐF |
| pH Range | 5.0โ7.5 | 6.0โ8.0 | โ 6.0โ7.5 |
| Temperament | peaceful | semi | โ ๏ธ Monitor |
| Adult Size | 1.4 in | 2.8 in | โ ๏ธ 2.0ร difference |
| Min. Group | 8+ | 6+ | See below |
| Min. Tank Size | 20 gallons (for both species) | โ | |
Compatibility Positives
Caution Points
Species Profiles
Black Neon Tetra โ Hyphessobrycon herbertaxelrodi
The Black Neon Tetra is a popular freshwater species known for its vibrant colors and peaceful temperament. It is an excellent addition to community tanks, thriving in groups of 6 or more. These tetras require a well-maintained aquarium with a flowing current and plenty of swimming space. With proper care, they can live up to 5 years.
โ Full Black Neon Tetra care guide
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 Black Neon Tetra live with Red Eye Tetra?
Yes, in a well-planned setup. Black Neon Tetra and Red Eye Tetra can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Black Neon Tetra is peaceful and Red Eye Tetra is semi, so give them room and cover rather than assuming they will ignore each other. A minimum 20-gallon tank is recommended to provide adequate territory and water volume for both species.
What tank size do I need for Black Neon Tetra and Red Eye Tetra together?
A minimum of 20 gallons is recommended for keeping Black Neon Tetra and Red Eye Tetra together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Black Neon Tetra and Red Eye Tetra?
72โ79ยฐF โ inside Black Neon Tetra's 68โ82ยฐF and Red Eye Tetra's 72โ79ยฐF.
Is a Black Neon Tetra aggressive toward a Red Eye Tetra?
Black Neon Tetra is peaceful and Red Eye Tetra is semi. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Black Neon Tetra 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 | 27 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 40 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 75 gal | Best when keeping larger schools or reducing territorial pressure. |