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How to Care for Guppies - Test
Contributed by: Sandhu
  • 1. What is the ideal water temperature range for guppies?
A) 72-82°F (22-28°C)
B) 60-70°F (15-21°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) Never
B) Weekly
C) Every other week
D) Monthly
  • 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) Extremely strong power filter
B) Sponge filter
C) Undergravel filter
D) No filter
  • 6. What is the ideal pH range for guppy water?
A) 8.0-9.0
B) 3.0-4.0
C) 5.0-6.0
D) 6.8-7.8
  • 7. Guppies are livebearers. What does this mean?
A) They reproduce asexually.
B) They give birth to live young.
C) They lay eggs.
D) They require brackish water to reproduce.
  • 8. What is a common food source for guppies?
A) Gravel
B) Flake food
C) Plastic plants
D) Sand
  • 9. What is a sign of overfeeding guppies?
A) Increased activity
B) Constant begging for food
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 increase their size.
C) To allow them to adjust to the new water temperature.
D) To teach them how to swim.
  • 11. What can you use to dechlorinate tap water before adding it to a guppy tank?
A) Vinegar
B) Baking soda
C) Bleach
D) Water conditioner
  • 12. What does 'cycling' a fish tank refer to?
A) Establishing beneficial bacteria.
B) Riding a bicycle next to the tank.
C) Moving the fish around the tank.
D) Constantly changing the water.
  • 13. Which of these is a good plant to include in a guppy tank?
A) Java Moss
B) Rose Bush
C) Cactus
D) Poison Ivy
  • 14. What is a symptom of Ich (White Spot Disease) in guppies?
A) Red gills
B) Small white spots on the body
C) Cloudy eyes
D) Bloated abdomen
  • 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 keep the water temperature down.
B) To block out light.
C) To prevent guppies from jumping out.
D) To attract more guppies.
  • 17. What type of lighting is generally sufficient for a guppy tank?
A) Blacklights
B) No lighting at all
C) Standard aquarium lighting
D) Intense reptile UVB lighting
  • 18. What is the gestation period for guppies (approximately)?
A) 60-90 days
B) 21-30 days
C) 120-150 days
D) 1-7 days
  • 19. Why might a female guppy hide frequently?
A) She is looking for food.
B) She is pregnant or stressed.
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) Remove all the adult guppies.
B) Provide plenty of hiding places (plants, etc.).
C) Don't feed 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) Sugar
C) Oxygen
D) Chlorine
  • 23. What beneficial bacteria convert ammonia into?
A) Chlorine then Oxygen
B) Sugar then Vinegar
C) Nitrite then Nitrate
D) Nothing, ammonia stays ammonia
  • 24. High levels of what can be toxic to guppies?
A) Iron
B) Nitrate
C) Calcium
D) Oxygen
  • 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 many plants in the tank
B) Having too much food in the tank
C) Having too much light in the tank
D) Having too many fish for the tank size
  • 27. What does the term 'drip acclimation' mean?
A) Slowly adjusting fish to new water parameters
B) Letting water drip into the tank constantly
C) Feeding fish with a dropper
D) Cleaning the tank with a dripping cloth
  • 28. What is a common cause of stress in guppies?
A) Constant strong currents
B) Sudden changes in water parameters
C) Overcrowding
D) All of the above
  • 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) Bury it in the substrate.
B) Remove it immediately.
C) Leave it for the other fish to eat.
D) Flush it down the toilet (not recommended for environmental reasons).
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