Blue Emperor Tetra (Nematobrycon palmeri)
The Blue Emperor Tetra is a striking and colorful freshwater fish known for its vibrant blue body and red-tipped fins, which make it stand out in any aquarium. This species is a peaceful and social fish, making it an excellent addition to community tanks. Blue Emperor Tetras thrive in schools and are active swimmers, adding movement and beauty to your tank. Their calm nature and bright colors make them a popular choice for aquarists looking to create a lively yet peaceful aquarium environment.
Need to Know:
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Recommended For: Community tanks with peaceful fish
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Minimum Tank Size: 75 litres
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Temperature Range: 22-28°C
| Specification | Value |
|---|---|
| Species | Nematobrycon palmeri |
| Size | 3-4 cm |
| Behavior | Peaceful, social |
| Water Type | Freshwater |
FAQ
What is the ideal tank size for Blue Emperor Tetras?
The minimum recommended tank size is 75 litres to ensure adequate space for schooling and swimming behavior.
What temperature range do Blue Emperor Tetras prefer?
They thrive in a temperature range of 22-28°C.
Are Blue Emperor Tetras compatible with other fish?
Yes, they are peaceful and best suited for community tanks with other non-aggressive fish.

Steven Terry –
The Blue Emperor Tetras are very active and add a lot of color to the tank. I kept them in a 100-litre community tank with neon tetras and they get along well. They swim in schools and look stunning. Easy to care for as long as the water parameters are stable.
Alexander Welch –
Great fish for adding visual interest. They are peaceful and don’t bother other species. I noticed they prefer to swim near the surface. The red tips on their fins are very noticeable and bright.
Vanessa Clark –
I bought a school of five and they’ve been thriving for over three months. The tank is well-maintained and the water temperature stays within the recommended range. They are active and look beautiful together.