Yellowtail tetra

Introduction

The Yellowtail Tetra (Alestopetersius caudalis) is a captivating freshwater fish cherished by aquarists for its vibrant yellow tail and peaceful demeanor. Native to Africa's Congo River Basin, this species thrives in well-planted aquariums and is suitable for both beginner and intermediate fishkeepers. With proper care, Yellowtail Tetras can live up to 8–10 years, offering long-term enjoyment to their keepers.

What makes the Yellowtail Tetra a popular choice among aquarists?

Its striking coloration and calm nature make it an excellent addition to community tanks, especially when kept in groups.

Is the Yellowtail Tetra suitable for beginners?

Yes, their hardy nature and adaptability to various water conditions make them ideal for novice fishkeepers.

Care and Environment

Providing optimal care for Yellowtail Tetras involves attention to tank setup, water parameters, diet, and overall environment.

What is the minimum tank size for a Yellowtail Tetra?

A minimum of 75 liters is recommended for a small group, ensuring ample swimming space and reducing stress.

What are the ideal water parameters for Yellowtail Tetras?

Maintain a temperature between 22–25°C, pH levels of 6.8–7.9, and water hardness of 10–20°N (178.57–357.14 ppm) to replicate their natural habitat.

Incorporate a fine-grained, dark-colored substrate to enhance their vibrant colors. Dense vegetation, driftwood, and rocks provide hiding spots and mimic their native environment. Ensure moderate lighting and a gentle water flow to keep them comfortable.

Yellowtail Tetras are omnivorous. Offer high-quality flake or pellet food as a staple, supplemented with live or frozen foods like brine shrimp, daphnia, and bloodworms. Including vegetable matter, such as spirulina flakes or blanched vegetables, ensures a balanced diet.

Regular maintenance is crucial. Perform weekly water changes of 20–30% and monitor water quality to prevent disease. A reliable filtration system helps maintain clean, well-oxygenated water.

Are Yellowtail Tetras sensitive to water quality changes?

While hardy, they can be sensitive to sudden changes. Consistent water parameters and regular maintenance are essential for their health.

Origin and Habitat

Yellowtail Tetras originate from Africa's Congo River Basin, inhabiting slow-moving freshwater systems rich in vegetation. These environments feature soft, slightly acidic to neutral waters with abundant hiding spots among plants and submerged structures.

What type of water bodies do Yellowtail Tetras inhabit?

They are found in slow-moving rivers and streams with dense vegetation and soft substrates.

How does their natural habitat influence their care in aquariums?

Replicating their natural environment with plants, subdued lighting, and gentle water flow helps them thrive in captivity.

Temperament and Compatibility

Yellowtail Tetras are peaceful, schooling fish that thrive in groups of at least 5–6 individuals. Keeping them in schools reduces stress and encourages natural behaviors.

Can Yellowtail Tetras be kept with other fish species?

Yes, they are compatible with other peaceful, similarly sized fish such as other tetra species, rasboras, danios, and corydoras catfish.

Are there any fish species to avoid as tank mates?

Avoid aggressive or territorial species like bettas, gouramis, or cichlids, as they may stress or harm Yellowtail Tetras.

Providing ample space and hiding spots ensures a harmonious community tank environment.

Interesting Facts

Yellowtail Tetras exhibit subtle sexual dimorphism; males display more intense coloration, especially in their yellow-tipped tails and fins, while females tend to have a slightly rounder body. Breeding them in captivity is challenging, requiring specific conditions such as a well-planted breeding tank and conditioning with live foods.

How long can Yellowtail Tetras live in captivity?

With proper care, they can live between 8 and 10 years, making them a long-term commitment for aquarists.

Do Yellowtail Tetras require a specific male-to-female ratio?

Maintaining a good male-to-female ratio, such as several females to one male, helps prevent aggression among males.

Sources

All information in this article has been gathered from the following reputable sources:

• en.aqua-fish.net
• aquainfo.org
• fishi-pedia.com