How to Care for Angelfishes
  • 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) 72-76°F
C) 68-72°F
D) 85-90°F
  • 3. What type of water is best for angelfish?
A) Soft, slightly acidic water
B) Hard, alkaline water
C) Brackish water
D) Saltwater
  • 4. What is a common sign of stress in angelfish?
A) Constant eating
B) Vibrant colors
C) Clamped fins
D) Aggressive behavior
  • 5. Which of the following is a good source of protein for angelfish?
A) Driftwood
B) Bloodworms
C) Gravel
D) Lettuce
  • 6. How often should you perform water changes in an angelfish tank?
A) Weekly
B) Monthly
C) Only when cloudy
D) Every other day
  • 7. What is the ideal pH range for angelfish?
A) 7.5 - 8.5
B) 5.0 - 5.5
C) 8.5 - 9.5
D) 6.0 - 7.0
  • 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) Swim bladder disease
C) Ich
D) Dropsy
  • 10. What should you do if you suspect your angelfish has Ich?
A) Flush the fish
B) Ignore it and hope it goes away
C) Add salt to the tank
D) Increase the water temperature and treat with medication
  • 11. Angelfish are generally considered to be what type of fish?
A) Aggressive
B) Herbivores
C) Semi-aggressive
D) Peaceful
  • 12. What type of decor should be avoided in an angelfish tank?
A) Sharp decorations
B) Driftwood
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) Pour the bag water directly into the tank
C) Immediately release them into the tank
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) Feeding the fish
D) Cleaning the aquarium
  • 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 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) Large, white spheres
D) Green algae
  • 18. How long does it take for angelfish eggs to hatch?
A) 1 week
B) 1 day
C) 1 month
D) 2-3 days
  • 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) Betta splendens
B) Pterophyllum scalare
C) Carassius auratus
D) Poecilia reticulata
  • 21. Which fish is generally NOT a good tank mate for angelfish?
A) Swordtails
B) Small, slow-moving fish like neon tetras
C) Corydoras catfish
D) Plecos
  • 22. What is the purpose of activated carbon in a filter?
A) Adds beneficial bacteria
B) Lowers the pH
C) Removes impurities and odors
D) Traps large debris
  • 23. What is the benefit of using live plants in an angelfish tank?
A) They increase the pH
B) They help oxygenate the water and provide hiding places
C) They release harmful toxins
D) They make the water cloudy
  • 24. What does the term 'cycling' a tank mean?
A) Establishing beneficial bacteria
B) Changing the water
C) Turning on the filter
D) Adding fish
  • 25. What are some common varieties of angelfish?
A) Koi, Veil tail, Marble
B) Oscar, Cichlid, Catfish
C) Siamese fighter, Molly, Corydora
D) Goldfish, Guppy, Pleco
  • 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 lower the water temperature
B) To remove chlorine and chloramine from tap water
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 prevent them from jumping out
D) To block out sunlight
  • 29. What is a symptom of a Nitrate Poisoning?
A) Clear Eyes
B) Rapid Growth
C) Breeding behavior
D) Gasping at the surface
  • 30. What is a method to lower the nitrate level in your angelfish tank?
A) Increase feeding
B) Perform a water change
C) Add more fish
D) Remove the filter
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