Maximum size : 6 cm

Serpae Tetra - Longfin - Hyphessobrycon eques var. "Longfin" : Complete Fish Profile & Care Guide

Table of contents

Introduction

The Longfin Serpae Tetra, (Hyphessobrycon eques) is a vibrant, energetic, and resilient fish. Its distinctive features and low-maintenance nature have earned it a prominent place among aquarium enthusiasts. This makes it an appealing choice for aquarists, despite the potential for mild aggression around slower-moving species. They do, however, generally prove to be compatible tank mates.

Establishing an optimal habitat for your Longfin Serpae Tetra is essential for its well-being and satisfaction. These fish naturally inhabit blackwater conditions. You can simulate this environment in captivity by incorporating aquarium-safe peat into the tank.

Before introducing Longfin Serpae Tetras into a new aquatic setup, it's crucial to set up the appropriate water parameters. Maintaining these fish's health necessitates thorough cycling of the tank to ensure ideal pH, ammonia, and nitrate levels. The keys to successfully maintaining and helping your Longfin Serpae Tetras flourish are closely replicating their natural habitat and diligently monitoring water conditions.

In terms of physical appearance, Longfin Serpae Tetras have a flat yet tall body. Their bodies are adorned with a rich reddish-olive hue that transitions to a more striking scarlet along the sides. They also have a notable black, comma-shaped mark behind the gills, and their dorsal fin exhibits bold black colouration. These captivating attributes contribute significantly to the enduring popularity of the Longfin Serpae Tetra among aquarists.

Serpae Tetra - Longfin Photos

Sexual Dimorphism

Differentiating between male and female Longfin Serpae Tetras is a relatively simple task, mostly reliant on physical observations. Females typically possess a more rounded body shape, distinguishing them from males, who tend to have a slimmer physique.

When it comes to colouration, male Longfin Serpae Tetras usually display more vibrant and vivid hues. This pronounced colouration is especially evident when the fish are in peak health or during breeding seasons. Conversely, female Longfin Serpae Tetras often present a more subdued appearance, with their colours appearing less intense than those of males. These marked differences in body shape and colouration make it fairly easy to distinguish between the sexes in this species.

Quick Facts

Scientific NameHyphessobrycon eques var. "Longfin"
Year Described1882
Other NamesRed Minor Tetra, Jewel tetra, Callistus Tetra, Longfin Serpae Tetra
KingdomAnimalia
ClassificationActinopterygii
OrderCharaciformes
FamilyCharacidae
GenusHyphessobrycon
OriginsParaguay , Argentina , Brazil
Max Size6 cm
TemperamentPeaceful
Aquarium LevelMiddle
DifficultyBeginner
ShoalingYes
Best kept asGroups 6+
Diet & FeedingOmnivore
ReproductionEgg-Scatterer
Average LifespanUp to 7 Years

Water Parameters

Water TypeFreshwater
pH 5.0 - 7.5
GH 5 - 25
Ideal Temperature
72 - 79
22 - 26

Natural Habitat

If you're in search of an aquarium species that masterfully blends captivating beauty with intriguing behaviour, look no further than the Longfin Serpae Tetra. While the base species originates from the lush and vibrant Amazon basin, specifically the Guapore and Paraguay River basins of Brazil, Argentina, and upper Paraguay, the longfin variant is a man-made morph created through selective breeding and not naturally found in the wild.

In their natural environment, the base Serpae Tetras favour slow-moving or still backwaters such as lakes, ponds, and streams. They are typically found congregated around tree roots and within dense vegetation, which serves as a source of both food and a protective refuge.

If your objective is to introduce a dash of South American charm into your aquarium, the Longfin Serpae Tetra is an outstanding choice. Their remarkable appearance, complemented by their engaging personalities, makes them a truly unforgettable addition to any aquatic environment. These fish not only enhance the visual appeal of your aquarium but also bring an intriguing slice of aquarium-engineered diversity, indirectly tied to the rich biodiversity of the Amazon, into your home.

Breeding

Breeding Longfin Serpae Tetras necessitates the maintenance of specific tank conditions. The optimal breeding environment for these fish is characterized by soft water with low acidity and gentle filtration. Creating a dimly lit ambience within the tank is also beneficial. This can be achieved by introducing a plentiful array of dark-leaved plants, such as Java moss. These plants not only enhance the suitability of the environment but also aid in egg-laying by providing plenty of spots for the eggs to attach.

To encourage spawning, it's recommended to augment the fish's diet with live food options. This strategy furnishes them with essential nutrients and can provoke breeding behaviours. Once the appropriate conditions are met, and the breeding process is successful, you can anticipate the Longfin Serpae Tetra eggs to hatch within approximately 24 hours. This rapid hatching period is an intriguing aspect of Longfin Serpae Tetra breeding, showcasing the robust and resilient nature of these vibrant fish.

Diet & Feeding

Longfin Serpae Tetras are celebrated for their adaptable dietary habits, as they readily accept a diverse array of food sources. As omnivores, they can prosper on a diet that encompasses flake or pellet food, along with ground grains and vegetable matter.

These fish also relish occasional offerings of small live or frozen foods, which can include insects, bloodworms, and brine shrimp. Such variety not only maintains their interest in feeding but also assures they receive a balanced intake of nutrients, fostering their overall health and vitality.

It's crucial to remember, however, that Longfin Serpae Tetras possess relatively small mouths. Hence, when providing food, it's necessary to ensure that it's appropriately sized for comfortable consumption. This consideration helps avoid potential feeding issues, allowing these fish to wholly benefit from their assorted diet.

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