How to Care for Angelfishes - Exam
  • 1. What is the minimum recommended tank size for a pair of adult angelfish?
A) 30 gallons
B) 55 gallons
C) 40 gallons
D) 20 gallons
  • 2. What is the ideal temperature range for angelfish?
A) 72-76°F
B) 68-72°F
C) 78-84°F
D) 85-90°F
  • 3. What type of water is best for angelfish?
A) Soft, slightly acidic water
B) Saltwater
C) Brackish water
D) Hard, alkaline water
  • 4. What is a common sign of stress in angelfish?
A) Aggressive behavior
B) Vibrant colors
C) Constant eating
D) Clamped fins
  • 5. Which of the following is a good source of protein for angelfish?
A) Lettuce
B) Driftwood
C) Gravel
D) Bloodworms
  • 6. How often should you perform water changes in an angelfish tank?
A) Monthly
B) Weekly
C) Every other day
D) Only when cloudy
  • 7. What is the ideal pH range for angelfish?
A) 7.5 - 8.5
B) 8.5 - 9.5
C) 6.0 - 7.0
D) 5.0 - 5.5
  • 8. What type of filtration is recommended for angelfish?
A) Only chemical
B) A combination of mechanical, chemical, and biological
C) Only biological
D) Only mechanical
  • 9. What is a common disease that affects angelfish?
A) Swim bladder disease
B) Ich
C) Dropsy
D) Fin rot
  • 10. What should you do if you suspect your angelfish has Ich?
A) Flush the fish
B) Add salt to the tank
C) Increase the water temperature and treat with medication
D) Ignore it and hope it goes away
  • 11. Angelfish are generally considered to be what type of fish?
A) Peaceful
B) Semi-aggressive
C) Aggressive
D) Herbivores
  • 12. What type of decor should be avoided in an angelfish tank?
A) Driftwood
B) Smooth rocks
C) Live plants
D) Sharp decorations
  • 13. What is a good way to acclimate angelfish to a new tank?
A) Float the bag in the tank for 15-30 minutes
B) Pour the bag water directly into the tank
C) Rinse the fish under tap water
D) Immediately release them into the tank
  • 14. What does 'aquascaping' mean?
A) Cleaning the aquarium
B) Measuring the water parameters
C) Arranging aquarium decorations
D) Feeding the fish
  • 15. What is the purpose of a quarantine tank?
A) To use as a sump
B) To breed angelfish
C) To store extra decorations
D) To isolate new fish to observe for disease
  • 16. How can you tell if angelfish are breeding?
A) They will start fighting
B) They will hide all the time
C) They will clean a flat surface and lay eggs
D) They will lose their color
  • 17. What do angelfish eggs look like?
A) Green algae
B) Black strands
C) Large, white spheres
D) Small, amber-colored dots
  • 18. How long does it take for angelfish eggs to hatch?
A) 1 week
B) 1 day
C) 2-3 days
D) 1 month
  • 19. What do newly hatched angelfish fry eat?
A) Gravel
B) Flake food
C) Bloodworms
D) Infusoria or microworms
  • 20. What is the scientific name for the angelfish?
A) Carassius auratus
B) Pterophyllum scalare
C) Poecilia reticulata
D) Betta splendens
  • 21. Which fish is generally NOT a good tank mate for angelfish?
A) Swordtails
B) Corydoras catfish
C) Small, slow-moving fish like neon tetras
D) Plecos
  • 22. What is the purpose of activated carbon in a filter?
A) Adds beneficial bacteria
B) Traps large debris
C) Removes impurities and odors
D) Lowers the pH
  • 23. What is the benefit of using live plants in an angelfish tank?
A) They make the water cloudy
B) They release harmful toxins
C) They help oxygenate the water and provide hiding places
D) They increase the pH
  • 24. What does the term 'cycling' a tank mean?
A) Adding fish
B) Turning on the filter
C) Establishing beneficial bacteria
D) Changing the water
  • 25. What are some common varieties of angelfish?
A) Siamese fighter, Molly, Corydora
B) Goldfish, Guppy, Pleco
C) Koi, Veil tail, Marble
D) Oscar, Cichlid, Catfish
  • 26. What does the term 'bioload' refer to?
A) The type of filter used
B) The size of the tank
C) The number of decorations
D) The amount of waste produced in the tank
  • 27. What is a water conditioner used for?
A) To remove chlorine and chloramine from tap water
B) To lower the water temperature
C) To add salt to the water
D) To add algae to the tank
  • 28. Why is it important to have a secure lid on an angelfish tank?
A) To keep other fish from getting in
B) To keep the water warm
C) To block out sunlight
D) To prevent them from jumping out
  • 29. What is a symptom of a Nitrate Poisoning?
A) Breeding behavior
B) Rapid Growth
C) Gasping at the surface
D) Clear Eyes
  • 30. What is a method to lower the nitrate level in your angelfish tank?
A) Remove the filter
B) Add more fish
C) Perform a water change
D) Increase feeding
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