Description
Red Hook Metynnis – Myloplus rubripinnis
Introduction:
The Red Hook Metynnis (Myloplus rubripinnis) is a striking, medium to large-sized species of South American fish, belonging to the Metynnidae family. These fish are known for their bright red markings near their dorsal fins, which resemble “hooks,” hence the name. With their unique appearance and peaceful nature, they make an excellent addition to larger community aquariums. Red Hook Metynnis typically grows to a size range of 6 to 10 inches.
1. Natural Habitat and Behavior
- Natural Habitat: Native to the Amazon Basin in South America, the Red Hook Metynnis is typically found in slow-moving waters, such as rivers, streams, and flooded forests. They prefer environments with abundant vegetation and clear water.
- Behavior: These fish are peaceful and social, best kept in schools of 5 or more individuals. They are mid-water swimmers and can be active, especially in well-planted tanks, but also enjoy occasional hiding spots provided by rocks or driftwood.
2. Aquarium Setup
- Tank Size: A minimum of 50 gallons is recommended to accommodate a school of Red Hook Metynnis. Larger tanks are ideal for more active schools.
- Substrate: Fine gravel or sand is suitable for this species, helping to recreate their natural riverbed environment.
- Decor: Decorate the tank with ample plants, driftwood, and rocks. These fish appreciate having plenty of space to swim freely, as well as sheltered areas to retreat to.
- Water Conditions: Red Hook Metynnis thrives in slightly acidic to neutral water (pH 6.0 to 7.5), with temperatures ranging from 75°F to 82°F. Keep water hardness low to medium, similar to their natural environment.
- Lighting: Bright lighting can be harsh on these fish, so moderate or subdued lighting is best to mimic their natural habitat. Floating plants can also provide some shaded areas for them.
3. Diet and Feeding
- Diet: Red Hook Metynnis is omnivorous, enjoying a varied diet that includes high-quality flake food, pellets, live foods (such as brine shrimp or daphnia), and some plant matter like spirulina or blanched vegetables.
- Feeding Schedule: Feed these fish 2 to 3 times a day, providing just enough food that they can consume in a few minutes to prevent overfeeding and ensure good water quality.
4. Compatibility with Other Fish
- Compatible Species: These peaceful fish are well-suited for community tanks, especially with other peaceful species such as tetras, rasboras, and catfish. They can also coexist with larger, non-aggressive cichlids.
- Incompatible Species: Avoid keeping them with overly aggressive fish, such as large cichlids, or with fin-nipping species that might harass them.
5. Common Challenges and Tips
- Water Quality: Red Hook Metynnis is sensitive to poor water quality, so regular water changes and proper filtration are essential to keeping them healthy.
- Schooling Behavior: Keeping them in groups of 5 or more will help reduce stress and encourage natural schooling behavior. In smaller groups, they can become shy and skittish.
- Feeding: These fish may be shy at feeding time, especially if they are not used to the tank, so be sure to provide plenty of food and avoid overfeeding.
Conclusion:
The Red Hook Metynnis (Myloplus rubripinnis) is a captivating and peaceful fish that thrives in community tanks, particularly those that offer ample space and vegetation. Their unique red markings and social nature make them a standout species in any aquarium. By providing the right tank conditions and a balanced diet, they will thrive and become an active and colorful addition to your aquatic setup.
