Diamond Tetra (Moenkhausia pittieri)
The Diamond Tetra is a stunning freshwater species known for its iridescent, diamond-like scales that shimmer in the light. These fish have a silvery body with subtle hints of blue and green, which becomes even more vibrant in well-maintained aquariums. They are peaceful, active swimmers that thrive in schools, creating a mesmerizing display of movement in the tank. Their calm nature makes them perfect for peaceful community setups, especially when kept with other small, non-aggressive species. The Diamond Tetra’s bright coloration and elegant movements make it a captivating addition to any aquarium.
Need to Know:
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Recommended For: Peaceful community aquariums
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Temperature: 72–82°F (22–28°C)
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Water pH: 6.0–7.0
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Water hardness: 2–10 dGH
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Adult size: 1.5 inches (3.8 cm)
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Compatibility: Best with non-aggressive species like neon tetras, cherry shiners, and small rasboras
| Parameter | Value |
|---|---|
| Species | Moenkhausia pittieri |
| Size | 1.5 inches |
| Lifespan | 5–7 years |
| Feeding | Small flakes, frozen foods, and live foods |
FAQ
What is the ideal water temperature for Diamond Tetras?
The ideal water temperature for Diamond Tetras is between 72–82°F (22–28°C).
Can Diamond Tetras be kept with other fish?
Yes, Diamond Tetras are peaceful and thrive in schools with other small, non-aggressive species such as neon tetras, cherry shiners, and rasboras.
How long do Diamond Tetras typically live?
Diamond Tetras typically live for 5 to 7 years with proper care.


Rebecca Underwood –
I’ve had these fish for six months now and they are absolutely beautiful. Their shimmering scales catch the light in a way that’s hard to describe. They swim together in a school and create a lively, peaceful atmosphere in my 10-gallon tank. Easy to care for and don’t stress other fish.
Megan Roberts –
The Diamond Tetras arrived healthy and were active from the start. I paired them with neon tetras and they get along perfectly. The colors are vibrant and they stay active throughout the day. Great for a beginner aquarist looking for a colorful, calm fish.
Jacob Hardacre –
They look stunning and are very active. I noticed they prefer slightly warmer water, so I adjusted the heater. They’ve been thriving in a 20-gallon tank with other small fish. A little more research on water parameters would have helped, but overall a great addition.