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