Maximum size : 4 cm

Black Neon Tetra - Hyphessobrycon herbertaxelrodi : Complete Fish Profile & Care Guide

Table of contents

Introduction

The Black Neon Tetra (Hyphessobrycon herbertaxelrodi) is a captivating species revered by aquarium enthusiasts for its striking appearance and peaceful demeanour. Their tranquil nature and adaptability make them an excellent choice for community aquariums, where they thrive alongside similarly sized and non-aggressive tankmates. With proper care and attention to their habitat requirements, Hyphessobrycon herbertaxelrodi can bring a touch of elegance and vibrancy to any aquatic setup.

For a visually stunning display, it is recommended to maintain Black Neon Tetras in sizable shoals of at least eight individuals or more, fostering cohesive group behaviour and enhancing their aesthetic appeal within the aquarium. Grouping these tetras promotes a sense of security and helps preserve their vibrant colouration by mitigating stress. When selecting tankmates, Tetras, Hatchetfish, Pencilfish, Corydoras Catfish, and small to medium-sized Cichlids are suitable companions, fostering a harmonious aquatic community. It is advisable to steer clear of larger, more aggressive species, as they may pose a threat to the delicate nature of Black Neon Tetras.

To accentuate the distinctive pigmentation of Black Neon Tetras, the incorporation of a peat filter system stands as an optimal choice. Complementing this, the selection of a dark sandy substrate is advised. Optionally, the substrate bed can be enhanced by the addition of desiccated beech or oak leaves, replacing them prior to decomposition. Augment the aquatic environment with lush vegetation and meticulously positioned driftwood elements. It is imperative to allocate a substantial expanse for unobstructed swimming, as these fish exhibit a proclivity for active movement. Lastly, the provision of a gentle surface current is poised to be well-received.

The Black Neon Tetra displays a distinct and characteristic appearance. Their body is primarily beige or brownish in colour with a vibrant, fluorescent, whitish-blue stripe that runs from behind their operculum to the caudal peduncle. A black bar runs parallel to the fluorescent stripe and gradually fades downwards. The belly area is typically lighter and yellowish in colour. Additionally, the upper half of their eye exhibits a striking orange hue, which gives them an eyebrow-like appearance.

Black Neon Tetra Photos

Sexual Dimorphism

Distinguishing male from female Black Neon Tetras can be challenging. However, their physical characteristics may indicate their sex, with females appearing rounder and deeper-bodied than males, especially when gravid with eggs.

Featured Male
Featured Female
Male Female

Quick Facts

Scientific Name Hyphessobrycon herbertaxelrodi
Year Described 1961
Other Names Black Tetra
Kingdom Animalia
Classification Actinopterygii
Order Characiformes
Family Characidae
Genus Hyphessobrycon
Origins Paraguay , Brazil
Max Size 4 cm
Temperament Peaceful
Aquarium Level Middle - Top
Difficulty Beginner - Intermediate
Shoaling Yes
Best kept as Groups 6+
Diet & Feeding Omnivore
Reproduction Egg-Scatterer
Average Lifespan Up to 2 Years

Water Parameters

Water Type Freshwater
pH 5.5 - 7.0
GH 1 - 6
KH 1 - 2
Ideal Temperature
68 - 79
20 - 26

Natural Habitat

The Black Neon Tetra originates from the Taquari and Paraguay River Basins, situated in southern Brazil in South America. In their natural habitat, these Tetras occupy diverse ecosystems, including creeks, small tributaries, flooded forests, and sandbanks. Particularly noteworthy is their preference for unique water conditions characterized by high acidity and a rich, tea-brown hue attributed to the abundance of tannins. These tannins stem from the decomposition of organic matter and leaf litter present on the substrate. Replicating such water parameters in a home aquarium presents a challenge but can be achieved with appropriate equipment and expertise.

 
 Paraguay River - Paraguay
Paraguay Flag
 
 
 Taquari River - Brazil
Brazil Flag
 

Breeding

Breeding Black Neon Tetras can be a fascinating experience if the water quality is well-maintained. To start with, condition a breeding pair with live foods like mosquito larvae or brine shrimp. It is advisable to choose the healthiest female and the most colourful and healthy male.

For optimal breeding yield, a separate breeding tank is necessary. The tank should have soft acidic water, a dark substrate, dim lighting, and a temperature a few degrees higher than usual. Fine-leaved plants should be present in abundance as a spawning medium, and floating plants can help to subdue the lighting. 

Spawning typically occurs in the morning. The female will deposit several hundred sticky eggs onto the plants and substrate. After spawning, it is essential to remove the parents; otherwise, they may consume the eggs and fry. The eggs will hatch after about 22 to 26 hours, and the fry will become free-swimming within three to four days.

The fry is relatively easy to raise, and you may feed them with commercially prepared foods, finely crushed flake foods, or newly hatched brine shrimp. Young Black Neon Tetras must be kept isolated until they are large enough not to get eaten by adult fish. You can then reintroduce them to the standard aquarium.

Diet & Feeding

To sustain the optimal health and vibrant colouration of Black Neon Tetras, it is advisable to offer a diverse diet to meet their nutritional requirements effectively. This entails incorporating a combination of high-quality flakes and granules alongside live and frozen foods, such as mosquito larvae, daphnia, Moina, and brine shrimp. Feeding these Tetras multiple times daily is crucial, ensuring to provide quantities they can consume within a span of 3 minutes or less to maintain their nutritional balance.

Other Tetras

2000 characters remaining!