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