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How to Raise Goldfishes
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) 68-74°F (20-23°C)
D) 80-86°F (27-30°C)
  • 2. What is the minimum tank size for one goldfish?
A) 5 gallons
B) 10 gallons
C) 1 gallon
D) 20 gallons
  • 3. What is the best type of filter for a goldfish tank?
A) Internal filter
B) Hang-on-back filter
C) Sponge filter
D) Undergravel 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) 10%
B) 75%
C) 25%
D) 50%
  • 6. What is a common sign of overfeeding in goldfish?
A) Increased plant growth
B) Cloudy water
C) Clear water
D) Higher fish activity
  • 7. What type of food is best for goldfish?
A) Dog food
B) Cat food
C) Goldfish pellets
D) Tropical fish flakes
  • 8. How often should you feed goldfish?
A) Every other day
B) Once or twice a day
C) Five times a day
D) Constantly
  • 9. What is a common disease in goldfish?
A) Ich
B) Bovine spongiform encephalopathy
C) Canine distemper
D) Feline leukemia
  • 10. What is the term for adding beneficial bacteria to a new tank?
A) Pasteurizing
B) Neutralizing
C) Sterilizing
D) Cycling
  • 11. What should you use to dechlorinate tap water?
A) Water conditioner
B) Vinegar
C) Bleach
D) Hydrogen peroxide
  • 12. What should you do if your goldfish is swimming erratically?
A) Check water parameters
B) Turn off the filter
C) Flush it down the toilet
D) Give it more food
  • 13. What plant is safe for goldfish to eat?
A) Anacharis
B) Java fern
C) Amazon sword
D) Cryptocoryne
  • 14. What is the purpose of aquarium salt?
A) Removes chlorine
B) Treats some diseases
C) Softens the water
D) Adds flavor to the water
  • 15. What is the lifespan of a goldfish?
A) 20-30 years
B) 5-7 years
C) 1-2 years
D) 10-15 years
  • 16. Why is it important to quarantine new goldfish?
A) Prevent spreading disease
B) To save on food
C) To make the main tank look less crowded
D) To make them feel lonely
  • 17. What is ammonia?
A) A type of decoration
B) A toxic waste product
C) A type of food
D) A beneficial nutrient
  • 18. What converts ammonia into nitrite in a fish tank?
A) Gravel
B) Filter floss
C) Algae
D) Beneficial bacteria
  • 19. What is nitrate?
A) Less toxic than ammonia and nitrite
B) Completely harmless
C) Equally toxic to ammonia
D) More toxic than ammonia
  • 20. What is the best way to remove nitrates from the tank?
A) Water changes
B) Adding more fish
C) Stopping feeding
D) Adding ammonia
  • 21. What is the ideal pH level for goldfish?
A) 8.5-9.5
B) 6.5-7.5
C) 10-11
D) 4.0-5.0
  • 22. What is the best substrate to use for goldfish?
A) Large gravel or bare bottom
B) Sand
C) Aquarium soil
D) Small, fine gravel
  • 23. What kind of lighting do goldfish need?
A) UVB lighting
B) Infrared lighting
C) Ambient room light
D) Direct sunlight
  • 24. What is fin rot?
A) A parasitic infection
B) A vitamin deficiency
C) A fungal infection
D) A bacterial infection
  • 25. What medication is commonly used to treat Ich?
A) Ivermectin
B) Malachite green
C) Insulin
D) Penicillin
  • 26. What can cause swim bladder disorder?
A) Too many plants
B) Overfeeding or constipation
C) Too much light
D) Lack of oxygen
  • 27. What should you do if a goldfish is constipated?
A) Give it more dry food
B) Feed boiled, shelled peas
C) Give it sugar
D) Give it less food
  • 28. What is the maximum size a common goldfish can reach?
A) 6-8 inches
B) 2-3 inches
C) 20-24 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 make the fish feel lonely
D) To save on decorations
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