How to Care for Guppies - Test
  • 1. What is the ideal water temperature range for guppies?
A) 85-95°F (29-35°C)
B) 72-82°F (22-28°C)
C) 60-70°F (15-21°C)
D) 50-60°F (10-15°C)
  • 2. What is the minimum tank size recommended for a small group of guppies?
A) 2.5 gallons
B) 5 gallons
C) 10 gallons
D) 1 gallon
  • 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) 25-50%
B) 75%
C) 100%
D) 10%
  • 5. What type of filter is generally recommended for a guppy tank?
A) Extremely strong power filter
B) No filter
C) Undergravel filter
D) Sponge filter
  • 6. What is the ideal pH range for guppy water?
A) 5.0-6.0
B) 8.0-9.0
C) 3.0-4.0
D) 6.8-7.8
  • 7. Guppies are livebearers. What does this mean?
A) They give birth to live young.
B) They reproduce asexually.
C) They require brackish water to reproduce.
D) They lay eggs.
  • 8. What is a common food source for guppies?
A) Gravel
B) Flake food
C) Sand
D) Plastic plants
  • 9. What is a sign of overfeeding guppies?
A) Constant begging for food
B) Clear, clean water
C) Uneaten food at the bottom of the tank
D) Increased activity
  • 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 teach them how to swim.
D) To increase their size.
  • 11. What can you use to dechlorinate tap water before adding it to a guppy tank?
A) Bleach
B) Water conditioner
C) Vinegar
D) Baking soda
  • 12. What does 'cycling' a fish tank refer to?
A) Establishing beneficial bacteria.
B) Constantly changing the water.
C) Moving the fish around the tank.
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) Cactus
D) Java Moss
  • 14. What is a symptom of Ich (White Spot Disease) in guppies?
A) Cloudy eyes
B) Small white spots on the body
C) Bloated abdomen
D) Red gills
  • 15. What should you do if you notice a guppy has fin rot?
A) Add more salt to the tank.
B) Ignore it and hope it goes away.
C) Lower the water temperature.
D) Isolate the fish and treat with medication.
  • 16. Why is it important to have a lid on a guppy tank?
A) To attract more guppies.
B) To block out light.
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) Standard aquarium lighting
B) Intense reptile UVB lighting
C) No lighting at all
D) Blacklights
  • 18. What is the gestation period for guppies (approximately)?
A) 60-90 days
B) 21-30 days
C) 1-7 days
D) 120-150 days
  • 19. Why might a female guppy hide frequently?
A) She is sleeping.
B) She is playing hide-and-seek.
C) She is pregnant or stressed.
D) She is looking for food.
  • 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 add carbon dioxide to the water.
B) To increase the pH of the water.
C) To protect guppy fry from being eaten.
D) To filter the water.
  • 22. What is the term for the nitrogenous waste products that build up in a fish tank?
A) Oxygen
B) Sugar
C) Ammonia
D) Chlorine
  • 23. What beneficial bacteria convert ammonia into?
A) Sugar then Vinegar
B) Nothing, ammonia stays ammonia
C) Chlorine then Oxygen
D) Nitrite then Nitrate
  • 24. High levels of what can be toxic to guppies?
A) Oxygen
B) Calcium
C) Nitrate
D) Iron
  • 25. What is the purpose of aquarium salt?
A) Sweetens the water
B) Kills all bacteria
C) Makes the fish float better
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 many fish for the tank size
C) Having too much light in the tank
D) Having too much food in the tank
  • 27. What does the term 'drip acclimation' mean?
A) Letting water drip into the tank constantly
B) Feeding fish with a dropper
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) 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) They can leach harmful substances into the water.
B) Guppies don't like the look of metal.
C) Metal is too heavy for the tank.
D) Metal rusts too quickly in water.
  • 30. What should you do with a dead guppy found in your tank?
A) Leave it for the other fish to eat.
B) Bury it in the substrate.
C) Remove it immediately.
D) Flush it down the toilet (not recommended for environmental reasons).
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