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How to Identify and Classify Arowanas
Contributed by: Wallis
  • 1. What is the defining characteristic of Arowanas that helps distinguish them from other fish?
A) Bony tongue with teeth
B) Rounded fins
C) Smooth scales
D) Downward-pointing mouth
  • 2. Which continent is home to the Silver Arowana (Osteoglossum bicirrhosum)?
A) Australia
B) Africa
C) South America
D) Asia
  • 3. The Asian Arowana (Scleropages formosus) is native to which region?
A) Australia
B) Africa
C) Southeast Asia
D) South America
  • 4. What is a primary distinguishing feature of the Australian Arowana compared to the Asian Arowana?
A) More vibrant colors
B) Shorter barbels
C) Larger scales
D) More elongated body
  • 5. Which Arowana species is known for its reddish-gold coloration?
A) Super Red Arowana
B) Jardini Arowana
C) Silver Arowana
D) Black Arowana
  • 6. What is the main characteristic of the 'Crossback' Asian Arowana?
A) Shorter body
B) Coloration extends across the back
C) Downward curved mouth
D) Smaller scales
  • 7. Which Arowana species is known to be relatively more peaceful compared to others?
A) Super Red Arowana
B) Golden Arowana
C) Silver Arowana
D) Jardini Arowana
  • 8. What type of food do Arowanas primarily consume in the wild?
A) Algae
B) Insects and small fish
C) Plant roots
D) Detritus
  • 9. How do Arowanas typically protect their young?
A) Guarding eggs on the substrate
B) Laying eggs on plants
C) Building nests
D) Mouthbrooding
  • 10. Which Arowana species is native to Australia?
A) Scleropages jardinii
B) Osteoglossum bicirrhosum
C) Heterotis niloticus
D) Scleropages formosus
  • 11. What is the significance of the barbels located on an Arowana's lower jaw?
A) Used for swimming
B) Sensory organs for detecting food
C) Used for defense
D) Used for attracting mates
  • 12. What is a common indicator of stress in Arowanas?
A) Brighter coloration
B) Decreased aggression
C) Loss of appetite
D) Increased activity
  • 13. What is the typical lifespan of an Arowana in captivity?
A) 20-30 years
B) 1-5 years
C) 5-10 years
D) 10-20 years
  • 14. What is the IUCN conservation status of the Asian Arowana (Scleropages formosus)?
A) Least Concern
B) Endangered
C) Near Threatened
D) Vulnerable
  • 15. Which color variant is most prized and expensive in Asian Arowanas?
A) Yellow Tail
B) Green
C) Super Red
D) Silver
  • 16. What water parameter is most critical for Arowana health?
A) Clean water
B) High salinity
C) High pH
D) Low temperature
  • 17. Which of these is NOT a typical food item for a captive Arowana?
A) Shrimp
B) Mealworms
C) Crickets
D) Lettuce
  • 18. What is a common disease that affects Arowanas?
A) Ich
B) Drop eye
C) Velvet
D) Fin rot
  • 19. Which species is also known as the Saratoga?
A) Scleropages leichardti
B) Osteoglossum bicirrhosum
C) Scleropages formosus
D) Heterotis niloticus
  • 20. What scale type and arrangement are commonly used to classify Asian Arowanas?
A) Scale pattern and distribution
B) Scale texture and thickness
C) Scale shape and size
D) Row count and color
  • 21. What is the ideal tank size for an adult Arowana?
A) Large, minimum 180 gallons
B) Small, minimum 50 gallons
C) Extra Large, minimum 300 gallons
D) Medium, minimum 100 gallons
  • 22. What is the function of an Arowana's upturned mouth?
A) Bottom feeding
B) Filter feeding
C) Surface feeding
D) Mid-water feeding
  • 23. Which of these Arowanas is most sensitive to water quality changes?
A) Silver Arowana
B) Jardini Arowana
C) Asian Arowana
D) Black Arowana
  • 24. What is a common tankmate issue with keeping Arowanas?
A) Aggression
B) Infection
C) Parasites
D) Starvation
  • 25. What does 'RTG' stand for in Arowana classification?
A) Red Tail Golden
B) Royal Thai Gold
C) Red Tipped Gills
D) Rare Tropical Giant
  • 26. What is the scientific name for the Black Arowana?
A) Scleropages formosus
B) Scleropages jardinii
C) Osteoglossum bicirrhosum
D) Osteoglossum ferreirai
  • 27. Which Arowana are considered good jumpers?
A) Silver Arowanas only
B) Asian Arowanas only
C) Australian Arowanas only
D) All Arowanas
  • 28. Which characteristic is unique to juvenile Black Arowanas?
A) Spotted pattern
B) Yellow stripe
C) Red fins
D) Blue scales
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