How to Care for Guppies
  • 1. What is the ideal water temperature range for guppies?
A) 50-60°F (10-15°C)
B) 72-82°F (22-28°C)
C) 60-70°F (15-21°C)
D) 85-95°F (29-35°C)
  • 2. What is the minimum tank size recommended for a small group of guppies?
A) 1 gallon
B) 5 gallons
C) 2.5 gallons
D) 10 gallons
  • 3. How often should you perform a partial water change in a guppy tank?
A) Every other week
B) Monthly
C) Never
D) Weekly
  • 4. What percentage of water should be changed during a partial water change?
A) 10%
B) 75%
C) 25-50%
D) 100%
  • 5. What type of filter is generally recommended for a guppy tank?
A) Undergravel filter
B) Extremely strong power filter
C) Sponge filter
D) No filter
  • 6. What is the ideal pH range for guppy water?
A) 5.0-6.0
B) 6.8-7.8
C) 3.0-4.0
D) 8.0-9.0
  • 7. Guppies are livebearers. What does this mean?
A) They lay eggs.
B) They require brackish water to reproduce.
C) They give birth to live young.
D) They reproduce asexually.
  • 8. What is a common food source for guppies?
A) Plastic plants
B) Flake food
C) Gravel
D) Sand
  • 9. What is a sign of overfeeding guppies?
A) Constant begging for food
B) Increased activity
C) Clear, clean water
D) Uneaten food at the bottom of the tank
  • 10. Why is it important to quarantine new guppies before adding them to the main tank?
A) To prevent the spread of disease.
B) To allow them to adjust to the new water temperature.
C) To increase their size.
D) To teach them how to swim.
  • 11. What can you use to dechlorinate tap water before adding it to a guppy tank?
A) Bleach
B) Baking soda
C) Water conditioner
D) Vinegar
  • 12. What does 'cycling' a fish tank refer to?
A) Constantly changing the water.
B) Riding a bicycle next to the tank.
C) Moving the fish around the tank.
D) Establishing beneficial bacteria.
  • 13. Which of these is a good plant to include in a guppy tank?
A) Cactus
B) Rose Bush
C) Java Moss
D) Poison Ivy
  • 14. What is a symptom of Ich (White Spot Disease) in guppies?
A) Bloated abdomen
B) Small white spots on the body
C) Red gills
D) Cloudy eyes
  • 15. What should you do if you notice a guppy has fin rot?
A) Isolate the fish and treat with medication.
B) Ignore it and hope it goes away.
C) Lower the water temperature.
D) Add more salt to the tank.
  • 16. Why is it important to have a lid on a guppy tank?
A) To block out light.
B) To prevent guppies from jumping out.
C) To attract more guppies.
D) To keep the water temperature down.
  • 17. What type of lighting is generally sufficient for a guppy tank?
A) No lighting at all
B) Blacklights
C) Intense reptile UVB lighting
D) Standard aquarium lighting
  • 18. What is the gestation period for guppies (approximately)?
A) 1-7 days
B) 21-30 days
C) 60-90 days
D) 120-150 days
  • 19. Why might a female guppy hide frequently?
A) She is looking for food.
B) She is pregnant or stressed.
C) She is sleeping.
D) She is playing hide-and-seek.
  • 20. What is a good way to prevent guppy fry from being eaten by adult guppies?
A) Provide plenty of hiding places (plants, etc.).
B) Separate the male and female guppies completely.
C) Don't feed the adult guppies.
D) Remove all the adult guppies.
  • 21. What is a 'breeder box' or 'breeding net' used for?
A) To filter the water.
B) To protect guppy fry from being eaten.
C) To increase the pH of the water.
D) To add carbon dioxide to the water.
  • 22. What is the term for the nitrogenous waste products that build up in a fish tank?
A) Sugar
B) Chlorine
C) Ammonia
D) Oxygen
  • 23. What beneficial bacteria convert ammonia into?
A) Nothing, ammonia stays ammonia
B) Chlorine then Oxygen
C) Nitrite then Nitrate
D) Sugar then Vinegar
  • 24. High levels of what can be toxic to guppies?
A) Oxygen
B) Nitrate
C) Iron
D) Calcium
  • 25. What is the purpose of aquarium salt?
A) Makes the fish float better
B) Sweetens the water
C) Kills all bacteria
D) Treats certain diseases and reduces stress
  • 26. What does the term 'overstocking' mean in relation to fish tanks?
A) Having too much light in the tank
B) Having too many plants in the tank
C) Having too many fish for the tank size
D) Having too much food in the tank
  • 27. What does the term 'drip acclimation' mean?
A) Feeding fish with a dropper
B) Letting water drip into the tank constantly
C) Cleaning the tank with a dripping cloth
D) Slowly adjusting fish to new water parameters
  • 28. What is a common cause of stress in guppies?
A) Sudden changes in water parameters
B) Overcrowding
C) All of the above
D) Constant strong currents
  • 29. Why should you avoid using metal decorations in a guppy tank?
A) Metal is too heavy for the tank.
B) They can leach harmful substances into the water.
C) Metal rusts too quickly in water.
D) Guppies don't like the look of metal.
  • 30. What should you do with a dead guppy found in your tank?
A) Remove it immediately.
B) Bury it in the substrate.
C) Flush it down the toilet (not recommended for environmental reasons).
D) Leave it for the other fish to eat.
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