How to Care for Angelfishes
  • 1. What is the minimum recommended tank size for a pair of adult angelfish?
A) 30 gallons
B) 20 gallons
C) 55 gallons
D) 40 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) Saltwater
B) Hard, alkaline water
C) Soft, slightly acidic water
D) Brackish water
  • 4. What is a common sign of stress in angelfish?
A) Clamped fins
B) Constant eating
C) Aggressive behavior
D) Vibrant colors
  • 5. Which of the following is a good source of protein for angelfish?
A) Bloodworms
B) Gravel
C) Driftwood
D) Lettuce
  • 6. How often should you perform water changes in an angelfish tank?
A) Weekly
B) Only when cloudy
C) Monthly
D) Every other day
  • 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) Swim bladder disease
B) Ich
C) Fin rot
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) Semi-aggressive
B) Aggressive
C) Peaceful
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) Immediately release them into the tank
B) Pour the bag water directly into the tank
C) Float the bag in the tank for 15-30 minutes
D) Rinse the fish under tap water
  • 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 breed angelfish
B) To use as a sump
C) To isolate new fish to observe for disease
D) To store extra decorations
  • 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) Large, white spheres
D) Black strands
  • 18. How long does it take for angelfish eggs to hatch?
A) 1 day
B) 1 week
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) Pterophyllum scalare
B) Poecilia reticulata
C) Carassius auratus
D) Betta splendens
  • 21. Which fish is generally NOT a good tank mate for angelfish?
A) Small, slow-moving fish like neon tetras
B) Plecos
C) Corydoras catfish
D) Swordtails
  • 22. What is the purpose of activated carbon in a filter?
A) Removes impurities and odors
B) Lowers the pH
C) Traps large debris
D) Adds beneficial bacteria
  • 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 make the water cloudy
D) They release harmful toxins
  • 24. What does the term 'cycling' a tank mean?
A) Establishing beneficial bacteria
B) Adding fish
C) Changing the water
D) Turning on the filter
  • 25. What are some common varieties of angelfish?
A) Siamese fighter, Molly, Corydora
B) Koi, Veil tail, Marble
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 type of filter used
C) The number of decorations
D) The size of the tank
  • 27. What is a water conditioner used for?
A) To add salt to the water
B) To add algae to the tank
C) To lower the water temperature
D) To remove chlorine and chloramine from tap water
  • 28. Why is it important to have a secure lid on an angelfish tank?
A) To keep the water warm
B) To prevent them from jumping out
C) To block out sunlight
D) To keep other fish from getting in
  • 29. What is a symptom of a Nitrate Poisoning?
A) Rapid Growth
B) Clear Eyes
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) Add more fish
C) Remove the filter
D) Perform a water change
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