Emperor Tetra
Nematobrycon palmeri
Intermediate
Freshwater
Generally peaceful, but males are territorial with one another. Males display a trident pattern on the caudal fin.
Characidae
Max Size
45.0 cm (17.7")
Min Tank
70 L (18 gal)
Min Group
6+
Diet
Omnivore. Flakes, pellets, brine shrimp, daphnia. Prefers variety in diet.
Water Parameters
Temperature
23.0-27.0°C
73-81°F
pH
5.0-7.0
Hardness (dGH)
2.0-10.0
Min Tank Size
70 L
18 gal
About
The Emperor Tetra is one of the most majestic tetras, with males showing a uniquely trifurcated (trident‑shaped) caudal fin among characins. It displays a blue‑violet coloration with emerald‑green eyes.
Behavior & Temperament
Generally peaceful, but males are territorial with one another. Males display a trident pattern on the caudal fin.
Feeding
Omnivore. Flakes, pellets, brine shrimp, daphnia. Prefers variety in diet.
Breeding
Oviparous. Deposits eggs individually among plant leaves.
Care Notes
Soft, acidic water. Dense vegetation with shaded areas. Few males per group (1:2 M:F).
Compatibility
Good tank mate for peaceful tetras, corydoras, and rasboras. Males may display territorial disputes.
Quick Summary
| Scientific Name | Nematobrycon palmeri |
|---|---|
| Family | Characidae |
| Category | Fish |
| Care Level | Intermediate |
| Water Type | Freshwater |
| Max Size | 45.0 cm (17.7") |
| Min Tank | 70 L (18 gal) |
| Min Group | 6+ |
| Diet | Omnivore. Flakes, pellets, brine shrimp, daphnia. Prefers variety in diet. |
| Temperament | Generally peaceful, but males are territorial with one another. Males display a trident pattern on the caudal fin. |
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