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