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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) 55 gallons
C) 30 gallons
D) 20 gallons
  • 2. What is the ideal temperature range for angelfish?
A) 85-90°F
B) 68-72°F
C) 72-76°F
D) 78-84°F
  • 3. What type of water is best for angelfish?
A) Soft, slightly acidic water
B) Brackish water
C) Hard, alkaline water
D) Saltwater
  • 4. What is a common sign of stress in angelfish?
A) Clamped fins
B) Vibrant colors
C) Aggressive behavior
D) Constant eating
  • 5. Which of the following is a good source of protein for angelfish?
A) Lettuce
B) Bloodworms
C) Driftwood
D) Gravel
  • 6. How often should you perform water changes in an angelfish tank?
A) Only when cloudy
B) Every other day
C) Weekly
D) Monthly
  • 7. What is the ideal pH range for angelfish?
A) 6.0 - 7.0
B) 5.0 - 5.5
C) 7.5 - 8.5
D) 8.5 - 9.5
  • 8. What type of filtration is recommended for angelfish?
A) Only mechanical
B) A combination of mechanical, chemical, and biological
C) Only biological
D) Only chemical
  • 9. What is a common disease that affects angelfish?
A) Ich
B) Swim bladder disease
C) Fin rot
D) Dropsy
  • 10. What should you do if you suspect your angelfish has Ich?
A) Increase the water temperature and treat with medication
B) Add salt to the tank
C) Ignore it and hope it goes away
D) Flush the fish
  • 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) Live plants
B) Sharp decorations
C) Driftwood
D) Smooth rocks
  • 13. What is a good way to acclimate angelfish to a new tank?
A) Immediately release them into the tank
B) Rinse the fish under tap water
C) Float the bag in the tank for 15-30 minutes
D) Pour the bag water directly into the tank
  • 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 use as a sump
B) To breed angelfish
C) To store extra decorations
D) To isolate new fish to observe for disease
  • 16. How can you tell if angelfish are breeding?
A) They will hide all the time
B) They will clean a flat surface and lay eggs
C) They will lose their color
D) They will start fighting
  • 17. What do angelfish eggs look like?
A) Small, amber-colored dots
B) Green algae
C) Black strands
D) Large, white spheres
  • 18. How long does it take for angelfish eggs to hatch?
A) 1 month
B) 2-3 days
C) 1 day
D) 1 week
  • 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) Pterophyllum scalare
C) Carassius auratus
D) Betta splendens
  • 21. Which fish is generally NOT a good tank mate for angelfish?
A) Swordtails
B) Small, slow-moving fish like neon tetras
C) Plecos
D) Corydoras catfish
  • 22. What is the purpose of activated carbon in a filter?
A) Removes impurities and odors
B) Adds beneficial bacteria
C) Lowers the pH
D) Traps large debris
  • 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) Establishing beneficial bacteria
C) Changing the water
D) Adding fish
  • 25. What are some common varieties of angelfish?
A) Siamese fighter, Molly, Corydora
B) Koi, Veil tail, Marble
C) Oscar, Cichlid, Catfish
D) Goldfish, Guppy, Pleco
  • 26. What does the term 'bioload' refer to?
A) The type of filter used
B) The amount of waste produced in the tank
C) The number of decorations
D) The size of the tank
  • 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 algae to the tank
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 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) Breeding behavior
B) Rapid Growth
C) Clear Eyes
D) Gasping at the surface
  • 30. What is a method to lower the nitrate level in your angelfish tank?
A) Increase feeding
B) Remove the filter
C) Add more fish
D) Perform a water change
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