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