Rosy tetra
Introduction
The Rosy tetra (Hyphessobrycon rosaceus) is a captivating freshwater fish cherished by aquarists for its vibrant pinkish hue and peaceful demeanor. Native to South America's Amazon River basin, this species is well-suited for community aquariums, especially for those new to fishkeeping. Its manageable care requirements and striking appearance make it a popular choice among hobbyists.
What makes the Rosy tetra a favorite among aquarists?
Its combination of vivid coloration, gentle nature, and ease of care appeals to both beginners and seasoned fishkeepers.
Is the Rosy tetra suitable for novice aquarists?
Yes, due to its hardy nature and straightforward care needs, it's an excellent choice for those new to the hobby.
Care and Environment
Providing optimal care for the Rosy tetra involves replicating its natural habitat and ensuring stable water conditions.
What is the minimum tank size for a Rosy tetra?
A minimum of 40 liters (approximately 10 gallons) is recommended for a small group of Rosy tetras.
What are the ideal water parameters for Rosy tetras?
Maintain a temperature between 24-28°C (75-82°F), a pH of 5.5-7.5, and water hardness of 1-12°H.
To mimic their natural environment, incorporate a dark, soft substrate with dense planting using species like Java Fern and Amazon Swords. Adding driftwood and Indian Almond leaves can release beneficial tannins, slightly acidifying the water.
Use a gentle filtration system to ensure clean, well-oxygenated water without creating strong currents. Dim lighting is preferred, as it enhances their coloration and reduces stress.
Rosy tetras are omnivorous and accept a variety of foods, including high-quality flake or pellet food, as well as live or frozen foods like bloodworms and brine shrimp.
How often should Rosy tetras be fed?
Feed them small amounts multiple times a day, ensuring they consume the food within a few minutes to prevent overfeeding.
Origin and Habitat
Rosy tetras are indigenous to the freshwater streams and tributaries of South America's Amazon River basin, particularly in Brazil, Peru, Guyana, Suriname, and Paraguay. They inhabit slow-moving, shaded waters rich in vegetation, where the decomposition of plant material results in slightly acidic conditions. These environments are characterized by soft substrates and abundant plant life, providing ample hiding spots and foraging opportunities.
What type of water bodies do Rosy tetras naturally inhabit?
They are found in slow-moving streams and tributaries within dense forests, leading to shaded, plant-rich waters.
How does their natural habitat influence their care in aquariums?
Replicating their natural environment with dense planting, soft substrates, and slightly acidic water conditions helps them thrive in captivity.
Temperament and Compatibility
Rosy tetras are peaceful, schooling fish that thrive when kept in groups of at least six. This social structure reduces stress and encourages natural behaviors. They coexist well with other small, non-aggressive species such as other tetras, rasboras, and small catfish.
Can Rosy tetras be kept with larger fish?
It's best to avoid housing them with significantly larger or aggressive fish, as Rosy tetras may become stressed or preyed upon.
Do Rosy tetras exhibit fin-nipping behavior?
While generally peaceful, they may nip at the fins of long-finned fish if kept in insufficient numbers. Maintaining a proper school size minimizes this behavior.
Interesting Facts
Rosy tetras are known for their captivating beauty and lively personalities, making them a favorite among fish enthusiasts. Males develop extended dorsal and anal fins as they mature, and they also tend to be larger, slimmer, and a bit more colorful than females.
How can you distinguish between male and female Rosy tetras?
Males typically have more elongated fins and are slightly more colorful than females.
Are Rosy tetras suitable for planted aquariums?
Yes, they thrive in well-planted tanks, which provide hiding spots and mimic their natural habitat.
Sources
All information in this article has been gathered from the following reputable sources:
Overview
Recommended Tank Size 19.8 Gallon (for groups of 6 or more) |
Minimum Group Size 6 |
Minimum Tank Volume 10.6 Gallon |
Maximum Adult Length 1.6 inch |
Average Adult Length 1.6 inch |
Shoaling (6+ required) Yes |
Preferred Water Type Freshwater, soft, slightly acidic |
Temperature Range (°C) 24-28 |
pH Range 5.5-7.5 |
Water Hardness (dGH) 1-12 |
Typical Lifespan (years) 3 years |