How to Raise Goldfishes - Quiz
  • 1. What is the ideal water temperature for goldfish?
A) 68-74°F (20-23°C)
B) 80-86°F (27-30°C)
C) 50-56°F (10-13°C)
D) 90-96°F (32-36°C)
  • 2. What is the minimum tank size for one goldfish?
A) 1 gallon
B) 5 gallons
C) 20 gallons
D) 10 gallons
  • 3. What is the best type of filter for a goldfish tank?
A) Internal filter
B) Undergravel filter
C) Hang-on-back filter
D) Sponge filter
  • 4. How often should you perform a partial water change?
A) Weekly
B) Every other day
C) Never
D) Monthly
  • 5. What percentage of water should you change during a partial water change?
A) 75%
B) 25%
C) 10%
D) 50%
  • 6. What is a common sign of overfeeding in goldfish?
A) Cloudy water
B) Higher fish activity
C) Clear water
D) Increased plant growth
  • 7. What type of food is best for goldfish?
A) Cat food
B) Dog food
C) Goldfish pellets
D) Tropical fish flakes
  • 8. How often should you feed goldfish?
A) Five times a day
B) Once or twice a day
C) Constantly
D) Every other day
  • 9. What is a common disease in goldfish?
A) Bovine spongiform encephalopathy
B) Canine distemper
C) Ich
D) Feline leukemia
  • 10. What is the term for adding beneficial bacteria to a new tank?
A) Pasteurizing
B) Neutralizing
C) Cycling
D) Sterilizing
  • 11. What should you use to dechlorinate tap water?
A) Vinegar
B) Water conditioner
C) Bleach
D) Hydrogen peroxide
  • 12. What should you do if your goldfish is swimming erratically?
A) Check water parameters
B) Give it more food
C) Flush it down the toilet
D) Turn off the filter
  • 13. What plant is safe for goldfish to eat?
A) Anacharis
B) Amazon sword
C) Cryptocoryne
D) Java fern
  • 14. What is the purpose of aquarium salt?
A) Adds flavor to the water
B) Treats some diseases
C) Removes chlorine
D) Softens the water
  • 15. What is the lifespan of a goldfish?
A) 10-15 years
B) 20-30 years
C) 5-7 years
D) 1-2 years
  • 16. Why is it important to quarantine new goldfish?
A) To make the main tank look less crowded
B) To make them feel lonely
C) Prevent spreading disease
D) To save on food
  • 17. What is ammonia?
A) A type of food
B) A type of decoration
C) A toxic waste product
D) A beneficial nutrient
  • 18. What converts ammonia into nitrite in a fish tank?
A) Algae
B) Gravel
C) Beneficial bacteria
D) Filter floss
  • 19. What is nitrate?
A) Equally toxic to ammonia
B) More toxic than ammonia
C) Less toxic than ammonia and nitrite
D) Completely harmless
  • 20. What is the best way to remove nitrates from the tank?
A) Water changes
B) Adding ammonia
C) Adding more fish
D) Stopping feeding
  • 21. What is the ideal pH level for goldfish?
A) 10-11
B) 8.5-9.5
C) 4.0-5.0
D) 6.5-7.5
  • 22. What is the best substrate to use for goldfish?
A) Large gravel or bare bottom
B) Sand
C) Small, fine gravel
D) Aquarium soil
  • 23. What kind of lighting do goldfish need?
A) UVB lighting
B) Direct sunlight
C) Ambient room light
D) Infrared lighting
  • 24. What is fin rot?
A) A vitamin deficiency
B) A fungal infection
C) A bacterial infection
D) A parasitic infection
  • 25. What medication is commonly used to treat Ich?
A) Penicillin
B) Malachite green
C) Ivermectin
D) Insulin
  • 26. What can cause swim bladder disorder?
A) Too much light
B) Lack of oxygen
C) Too many plants
D) Overfeeding or constipation
  • 27. What should you do if a goldfish is constipated?
A) Give it less food
B) Give it more dry food
C) Feed boiled, shelled peas
D) Give it sugar
  • 28. What is the maximum size a common goldfish can reach?
A) 20-24 inches
B) 2-3 inches
C) 12-14 inches
D) 6-8 inches
  • 29. Why is it important to avoid overcrowding the tank?
A) To make cleaning easier
B) To save on decorations
C) To make the fish feel lonely
D) To prevent poor water quality
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