6” Redfin Payara

6” Redfin Payara – A Striking Predator for Experienced Aquarists

The 6” Redfin Payara (Hydrolycus scomberoides) is an impressive and formidable freshwater fish known for its sharp teeth and aggressive temperament. Native to the fast-flowing rivers of the Amazon basin, this species boasts a sleek silver body with vibrant red fins, making it a standout addition in any large aquarium designed for predatory fish enthusiasts.

Size and Growth Potential

At 6 inches, the Redfin Payara is considered a juvenile specimen; however, they can grow up to 12–14 inches in captivity when provided with optimal care. Due to their potential size and active swimming behavior, prospective owners should plan for a spacious tank environment that accommodates their growth and energetic nature.

Temperament and Behavior

Known for their aggression, Redfin Payaras are territorial and predatory. They exhibit dominance toward smaller fish and may attack tankmates that are too small or slow. This species requires careful consideration of tankmates to prevent stress or injury. Their assertive nature means they are best kept either singly or with similarly sized, robust fish that can hold their own.

Recommended Tank Size and Environment

To ensure a healthy and stress-free life, a minimum tank size of 125 gallons is recommended for a 6” Redfin Payara. The aquarium should offer ample swimming space, along with hiding spots created by driftwood or large rocks to mimic their natural riverine habitat. A strong filtration system is essential to maintain excellent water quality, as these fish are sensitive to fluctuations.

Water Parameters for Optimal Health

• Temperature: 75°F – 82°F (24°C – 28°C)
• pH Level: 6.0 – 7.0
• Water Hardness: Soft to moderately hard (2 – 12 dGH)
• Flow: Moderate to strong water current to simulate natural river conditions

Maintaining stable water conditions with regular monitoring helps reduce stress and supports the Redfin Payara’s immune system.

Diet and Feeding Habits

As carnivores, Redfin Payaras require a protein-rich diet that closely resembles their natural prey. Their diet should include live or frozen foods such as small fish, shrimp, insects, and high-quality carnivorous pellets. Feeding them at least once daily with appropriately sized portions supports their growth and vibrant coloration. Avoid overfeeding to prevent water quality issues.

Compatibility and Tankmates

Due to their aggressive and predatory nature, Redfin Payaras are not suited for community tanks with small or slow-moving fish. Suitable tankmates include other large, robust species such as large cichlids, arowanas, or equally sized predatory characins. Always monitor interactions closely, as individual temperaments may vary.

Unique Selling Points of the Redfin Payara

• Striking red fins contrasted against a silver body create a visually captivating centerpiece.
• Impressive predatory behavior appeals to advanced aquarists seeking a dynamic and challenging species.
• Relatively hardy when kept in proper conditions, making them a rewarding fish for experienced hobbyists.
• Active swimmers that bring movement and excitement to large freshwater setups.

For those searching for a fascinating and bold addition to their large freshwater aquariums, the 6” Redfin Payara offers both beauty and intrigue. With proper care, tank setup, and compatible companions, this species can thrive and become a stunning focal point of your aquatic collection.