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How to Care for Goldfishes
Contributed by: Sandhu
  • 1. What is the minimum tank size recommended for one goldfish?
A) 10 gallons
B) 5 gallons
C) 2 gallons
D) 20 gallons
  • 2. What type of filtration is essential for a goldfish tank?
A) Air stone only
B) A powerful filter
C) No filtration
D) A small sponge filter
  • 3. What is the ideal water temperature for goldfish?
A) 80-85°F (27-29°C)
B) 50-55°F (10-13°C)
C) 90-95°F (32-35°C)
D) 68-74°F (20-23°C)
  • 4. How often should you perform a partial water change?
A) Weekly
B) Yearly
C) Never
D) Monthly
  • 5. What percentage of the water should be changed during a partial water change?
A) 75%
B) 25-50%
C) 10%
D) 100%
  • 6. What should you add to the water during a water change to neutralize harmful chemicals?
A) Bleach
B) Dish soap
C) Dechlorinator
D) Vinegar
  • 7. What is the best type of substrate for a goldfish tank?
A) Small gravel
B) Large gravel or bare bottom
C) Sand
D) Soil
  • 8. What is the proper way to cycle a new goldfish tank?
A) Use tap water without treatment
B) Never clean the filter
C) Add goldfish immediately
D) Establish beneficial bacteria
  • 9. What food is NOT recommended for goldfish?
A) Pellets
B) Live food
C) Flakes
D) Bread
  • 10. How often should you feed goldfish?
A) Once or twice a day
B) Five times a day
C) Once a week
D) Constantly
  • 11. What is a common sign of overfeeding in goldfish?
A) Increased activity
B) Bloating
C) Increased appetite
D) Brighter colors
  • 12. Which of these tankmates is generally NOT suitable for goldfish?
A) White Cloud Mountain Minnows
B) Mystery Snails
C) Tropical fish
D) Bristlenose Plecos
  • 13. What is the purpose of quarantine when introducing new goldfish?
A) To observe for disease
B) To get used to the tank
C) To increase appetite
D) To acclimate to the temperature
  • 14. What is a common disease in goldfish?
A) Ich
B) Dry skin
C) Baldness
D) Feather loss
  • 15. What is the appearance of Ich on a goldfish?
A) White spots
B) Green algae
C) Red streaks
D) Black patches
  • 16. What is the primary cause of swim bladder disorder in goldfish?
A) Too much light
B) Aggressive tankmates
C) Lack of oxygen
D) Poor diet
  • 17. What is a common symptom of swim bladder disorder?
A) Hiding constantly
B) Floating upside down
C) Increased appetite
D) Rapid swimming
  • 18. How can you help a goldfish with swim bladder disorder?
A) Add salt to the tank
B) Feed peas
C) Remove all plants
D) Lower the water temperature
  • 19. What type of lighting is best for goldfish?
A) Black light
B) Very bright light
C) No light at all
D) Normal ambient light
  • 20. Why is it important to avoid sharp decorations in a goldfish tank?
A) To make the tank look cleaner
B) To reduce algae growth
C) To prevent injuries
D) To save space
  • 21. What is the benefit of adding live plants to a goldfish tank?
A) Increased oxygen consumption
B) Increased aggression
C) Improved water quality
D) Faster algae growth
  • 22. What should you do if you notice a goldfish acting lethargic?
A) Increase the feeding amount
B) Check water parameters
C) Ignore it
D) Add more fish
  • 23. What does 'ammonia' indicate in a fish tank?
A) Fish waste and decaying matter
B) Healthy bacteria
C) Plant food
D) Clean water
  • 24. What level should ammonia be in a healthy goldfish tank?
A) 5 ppm
B) 0 ppm
C) 10 ppm
D) 1 ppm
  • 25. What do you use to test the water quality of the goldfish tank?
A) Test kit
B) pH meter only
C) TDS meter only
D) Thermometer
  • 26. What does it mean to 'condition' the water?
A) Raise the temperature
B) Add fertilizer
C) Remove chlorine/chloramine
D) Add salt
  • 27. What is a sign of chlorine or chloramine poisoning in goldfish?
A) Increased activity
B) Gasping at the surface
C) Loss of color
D) Increased appetite
  • 28. Which is better for Goldfish, flake or pellet food?
A) Pellets
B) Dried Shrimp
C) Flake
D) Dried Worms
  • 29. What can you add to your goldfish's diet to promote better coloration?
A) Spirulina
B) Sugar
C) Milk
D) Bacon
  • 30. What behavior should you watch out for when introducing a new fish?
A) Singing
B) Happy tail wagging
C) Fin nipping
D) Sleeping
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