Description
Bloodfin Tetra – Hyphessobrycon erythrostigma
Introduction:
The Bloodfin Tetra (Hyphessobrycon erythrostigma) is a small, striking freshwater species known for its vibrant red coloration on its fins, which gives it its common name. This peaceful and hardy fish is ideal for community tanks, especially for beginners. Bloodfin Tetras reach a maximum size of about 2 inches and are native to the Rio Paraguay Basin in South America. Their lively nature and attractive appearance make them a popular choice among aquarists.
1. Natural Habitat and Behavior
- Natural Habitat: Native to South America’s Rio Paraguay and its tributaries, Bloodfin Tetras thrive in warm, slightly acidic waters with dense vegetation. In the wild, they are often found in schools, where they swim actively in mid-to-upper water levels.
- Behavior: Bloodfin Tetras are peaceful and social fish, often forming schools in aquariums. They are active swimmers, especially when kept in groups, and can be quite captivating to watch. However, they are not known to be territorial and will generally avoid conflict with other species.
2. Aquarium Setup
- Tank Size: A minimum of 10 gallons is suitable for a small school of Bloodfin Tetras. However, a larger tank (20 gallons or more) is recommended for a more stable environment and room for other compatible tankmates.
- Substrate: Bloodfin Tetras are not picky about substrate, but a fine gravel or sand substrate mimics their natural habitat. A natural, light-colored substrate works well to highlight their vibrant coloration.
- Decor: Dense plants, driftwood, and smooth rocks offer hiding places and swim-through spaces. Bloodfin Tetras prefer slightly dim lighting with floating plants that provide them some cover, while leaving open areas for swimming.
- Water Conditions: These tetras prefer slightly acidic to neutral water, with a pH of 6.5 to 7.5. The water temperature should be kept between 72°F and 80°F (22°C to 27°C). Moderate water hardness (GH 4-12) is ideal, and good filtration is essential to maintain water clarity.
- Lighting: Moderate lighting is sufficient for Bloodfin Tetras, and soft or diffused lighting enhances their colors and helps replicate their natural, shaded environment.
3. Diet and Feeding
- Diet: Bloodfin Tetras are omnivorous and will readily accept a variety of foods, including flake food, small pellets, and frozen foods such as brine shrimp, daphnia, and bloodworms. They also enjoy live food occasionally, which helps enhance their color.
- Feeding Schedule: Feed them twice a day with a varied diet. Only provide food that they can consume in a few minutes to prevent excess food from polluting the water. Bloodfin Tetras do well on a balanced, protein-rich diet with some vegetable matter.
4. Compatibility with Other Fish
- Compatible Species: Bloodfin Tetras are peaceful and can live harmoniously with other community tank species, such as Corydoras catfish, small rasboras, guppies, and other tetras. They do best in schools of 6 or more to feel secure and comfortable.
- Incompatible Species: Avoid keeping them with larger, aggressive fish, such as cichlids or large catfish, as these may stress or prey on the Bloodfin Tetras. Also, avoid any species known to be fin-nippers, as Bloodfin Tetras have delicate fins.
5. Common Challenges and Tips
- Schooling: Bloodfin Tetras are schooling fish and should be kept in groups of at least 6 to prevent stress and encourage natural behavior. A small group in a large tank may appear shy and inactive, so always aim for a more substantial school.
- Water Quality: Bloodfin Tetras are sensitive to poor water conditions. Regular water changes (about 25% weekly) are necessary to keep them healthy. A strong filtration system will help maintain water clarity.
- Compatibility: While generally peaceful, the addition of overly aggressive fish can cause stress. Choose peaceful, similarly sized species as tankmates to ensure a harmonious community setup.
Conclusion:
The Bloodfin Tetra (Hyphessobrycon erythrostigma) is a wonderful species for community aquariums, especially in schools of 6 or more. Their vibrant red fins and peaceful nature make them a great addition to a well-maintained aquarium. With the right water conditions, diet, and tankmates, Bloodfin Tetras will thrive and provide years of beauty and activity in your tank.
