Emperor Tetra - Nematobrycon palmeri : Complete Fish Profile & Care Guide
Table of contents
Introduction
Boasting a regal presence, the Emperor Tetra (Nematobrycon palmeri) is adorned with a stunning appearance and complemented by its amiable disposition as a peaceful, active, and serene species. For optimal social dynamics, a favourable practice involves striving to achieve a numerical advantage of females over males, particularly achievable within larger collectives. This approach not only fosters enhanced security for the fish but also yields a more authentic and effective representation of natural shoaling behaviour.
When selecting tankmates, prudent choices encompass species of comparable dimensions and temperament, such as congenial small Tetras, Corydoras Catfish, Pencilfish, and diminutive Cichlids like Apistogramma or Mikrogeophagus, alongside select Dwarf Loricariids.
A well-appointed aquarium, replete with ample vegetation, both rooted and afloat, constitutes an ideal habitat. This habitat should feature a dark substrate, ideally sand or gravel, coupled with a profusion of embellishments encompassing ornaments, driftwood, and vibrant live flora. It's noteworthy that male territorial tendencies might emerge; however, the infrequent skirmishes rarely lead to any physical harm. The strategic placement of decorations like driftwood aids in disrupting line-of-sight and subsequently mitigates instances of aggression.
The original Emperor Tetras are adorned in a mesmerizing blend of royal blue, purple, and vibrant yellow hues that shimmer and shift. A unique stripe transitions from purple or blue, gradually lightening towards the fins and tail, which are resplendent in yellow. Additionally, Emperor Tetras are available in four other captivating varieties: Rainbow, Blue, Black, and Red. Each of these distinct colourations adds a touch of elegance and intrigue to any aquarium, making Emperor Tetras a highly sought-after addition to the aquatic world.
Emperor Tetra Photos
Sexual Dimorphism
Distinguishing between male and female Emperor Tetras is a relatively simple task, thanks to their distinct physical traits. The most prominent difference between the sexes lies in their eye colouration, with females exhibiting green eyes and males displaying blue eyes. Females are generally smaller in size and possess fuller abdomens compared to their male counterparts.
In contrast, males boast an elongated ray in the centre of their caudal fin and extended dorsal and anal fins, features that are absent in females. These pronounced distinctions make it effortless for aquarists to identify and appreciate the unique attributes of each gender within this fascinating species.
Quick Facts
| Scientific Name | Nematobrycon palmeri |
|---|---|
| Year Described | 1911 |
| Other Names | Blue Emperor Tetra, Red Emperor Tetra, Rainbow Emperor Tetra, Black Emperor Tetra |
| Kingdom | Animalia |
| Classification | Actinopterygii |
| Order | Characiformes |
| Family | Characidae |
| Genus | Nematobrycon |
| Origins | Colombia , Brazil |
| Max Size | 4.5 cm |
| Temperament | Peaceful |
| Aquarium Level | Bottom - Middle |
| Difficulty | Beginner |
| Shoaling | Yes |
| Best kept as | Groups 5+ |
| Diet & Feeding | Omnivore |
| Reproduction | Egg-Scatterer |
| Average Lifespan | Up to 5 Years |
Water Parameters
| Water Type | Freshwater |
|---|---|
| pH | 5.0 - 7.5 |
| GH | 3-9 |
| KH | 4-8 |
| TDS | 50 - 250 |
| ℉ | 73 - 80 |
|---|---|
| ℃ | 22 - 26 |
Natural Habitat
Breeding
Breeding Emperor Tetras requires minimal intervention when an appropriate pair is established. To create a conducive environment, transfer them to a separate tank featuring dim lighting, soft acidic water, and live food offerings. Provide either a spawning mop or dense floating plants as suitable locations for egg deposition. An alternative approach involves placing mesh at the tank's bottom, with openings large enough for eggs to fall through but small enough to prevent adult access.
Emperor Tetras lay only a few eggs at a time, resulting in a spawning process that may span several hours. As soon as eggs are detected, promptly remove the adults to prevent them from consuming their offspring. If no eggs are visible after a couple of days, the breeding attempt has been unsuccessful. In this case, it is necessary to remove the current pair and initiate the process anew with a different pairing. By following these guidelines, you can successfully propagate the Emperor Tetra species with relative ease.
Diet & Feeding
Emperor Tetras can consume dried foods of an appropriate size, but a diverse diet is essential for their well-being. Incorporating daily servings of small frozen and live foods, such as Artemia, Brine Shrimp, Daphnia, and other similar fares, not only promotes breeding but also enhances the vibrant colouration of this species. Providing a balanced and varied diet is vital in maintaining the overall health and vitality of Emperor Tetras.
Other Tetras
121 More Tetras Profiles
View All