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