How to Care for Monster Fish like Arowana & Stingray

Keeping monster fish such as Arowana and Stingray can be a rewarding experience, but it requires specific care to ensure these impressive creatures thrive. These fish are not your typical aquarium pets; they demand space, proper water conditions, and a well-planned diet. This guide will help you understand the essentials of caring for these unique species so you can enjoy their beauty and vitality for years.

Arowana swimming gracefully in a spacious tank

Tank Setup and Space Requirements

Both Arowanas and Stingrays grow quite large, so they need ample space to move freely. Arowanas can reach lengths of up to 3 feet, while freshwater Stingrays often grow to 2 feet or more in diameter. A tank of at least 150 gallons is recommended for a single adult fish, with larger tanks preferred for multiple specimens.

• Use a long and wide tank rather than a tall one to accommodate their swimming style.

• Provide a sturdy lid for Arowanas, as they are known to jump.

• For Stingrays, ensure the tank has a soft sandy substrate to protect their delicate undersides.

• Include hiding spots and gentle water flow to mimic their natural environment.

  
  

Water Quality and Filtration

Maintaining excellent water quality is critical for monster fish health. Both species are sensitive to poor water conditions.

• Keep water temperature between 75°F and 82°F.

• Maintain pH levels around 6.5 to 7.5.

• Use a powerful filtration system capable of handling large bio-loads.

• Perform regular water changes of 20-30% weekly to keep nitrate levels low.

• Monitor ammonia and nitrite levels closely, as these can be toxic.

  
  

Feeding and Nutrition

Arowanas and Stingrays have different dietary needs but both require a varied diet to stay healthy.

• Arowanas are carnivorous and enjoy live or frozen foods such as shrimp, crickets, and small fish.

• Stingrays prefer sinking foods like earthworms, shrimp, and specially formulated bottom feeder pellets.

• Feed adult fish once or twice daily, adjusting portions to avoid overfeeding.

• Avoid feeding feeder fish from unknown sources to prevent disease.

  
  

Freshwater stingray resting on soft sand in a large aquarium

Health and Behavior Monitoring

Regular observation helps catch health issues early.

• Watch for signs of stress such as loss of appetite, erratic swimming, or discoloration.

• Keep an eye on the tank mates; Arowanas can be aggressive and may attack smaller fish.

• Stingrays are generally peaceful but need calm tank mates to avoid stress.

• Quarantine new fish before introducing them to the main tank to prevent disease spread.