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How to Care for Angelfishes
Contributed by: Sandhu
  • 1. What is the minimum recommended tank size for a pair of adult angelfish?
A) 40 gallons
B) 20 gallons
C) 55 gallons
D) 30 gallons
  • 2. What is the ideal temperature range for angelfish?
A) 85-90°F
B) 72-76°F
C) 78-84°F
D) 68-72°F
  • 3. What type of water is best for angelfish?
A) Brackish water
B) Soft, slightly acidic water
C) Hard, alkaline 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) Bloodworms
B) Driftwood
C) Lettuce
D) Gravel
  • 6. How often should you perform water changes in an angelfish tank?
A) Monthly
B) Only when cloudy
C) Every other day
D) Weekly
  • 7. What is the ideal pH range for angelfish?
A) 5.0 - 5.5
B) 8.5 - 9.5
C) 6.0 - 7.0
D) 7.5 - 8.5
  • 8. What type of filtration is recommended for angelfish?
A) Only chemical
B) Only biological
C) A combination of mechanical, chemical, and biological
D) Only mechanical
  • 9. What is a common disease that affects angelfish?
A) Fin rot
B) Ich
C) Swim bladder disease
D) Dropsy
  • 10. What should you do if you suspect your angelfish has Ich?
A) Flush the fish
B) Add salt to the tank
C) Ignore it and hope it goes away
D) Increase the water temperature and treat with medication
  • 11. Angelfish are generally considered to be what type of fish?
A) Herbivores
B) Aggressive
C) Semi-aggressive
D) Peaceful
  • 12. What type of decor should be avoided in an angelfish tank?
A) Driftwood
B) Sharp decorations
C) Live plants
D) Smooth rocks
  • 13. What is a good way to acclimate angelfish to a new tank?
A) Rinse the fish under tap water
B) Float the bag in the tank for 15-30 minutes
C) Immediately release them into the tank
D) Pour the bag water directly into the tank
  • 14. What does 'aquascaping' mean?
A) Feeding the fish
B) Cleaning the aquarium
C) Measuring the water parameters
D) Arranging aquarium decorations
  • 15. What is the purpose of a quarantine tank?
A) To use as a sump
B) To store extra decorations
C) To isolate new fish to observe for disease
D) To breed angelfish
  • 16. How can you tell if angelfish are breeding?
A) They will lose their color
B) They will start fighting
C) They will hide all the time
D) They will clean a flat surface and lay eggs
  • 17. What do angelfish eggs look like?
A) Black strands
B) Small, amber-colored dots
C) Green algae
D) Large, white spheres
  • 18. How long does it take for angelfish eggs to hatch?
A) 2-3 days
B) 1 day
C) 1 week
D) 1 month
  • 19. What do newly hatched angelfish fry eat?
A) Bloodworms
B) Flake food
C) Infusoria or microworms
D) Gravel
  • 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) Corydoras catfish
B) Small, slow-moving fish like neon tetras
C) Plecos
D) Swordtails
  • 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 help oxygenate the water and provide hiding places
B) They make the water cloudy
C) They increase the pH
D) They release harmful toxins
  • 24. What does the term 'cycling' a tank mean?
A) Changing the water
B) Adding fish
C) Turning on the filter
D) Establishing beneficial bacteria
  • 25. What are some common varieties of angelfish?
A) Koi, Veil tail, Marble
B) Siamese fighter, Molly, Corydora
C) Goldfish, Guppy, Pleco
D) Oscar, Cichlid, Catfish
  • 26. What does the term 'bioload' refer to?
A) The amount of waste produced in the tank
B) The size of the tank
C) The type of filter used
D) The number of decorations
  • 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 prevent them from jumping out
B) To keep other fish from getting in
C) To keep the water warm
D) To block out sunlight
  • 29. What is a symptom of a Nitrate Poisoning?
A) Breeding behavior
B) Gasping at the surface
C) Rapid Growth
D) Clear Eyes
  • 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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