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How to Raise Guppies - Test
Contributed by: Boyd
  • 1. What is the ideal water temperature for guppies?
A) 85-90°F (29-32°C)
B) 60-65°F (15-18°C)
C) 50-55°F (10-13°C)
D) 72-82°F (22-28°C)
  • 2. What is the minimum tank size for a small group of guppies (3-5)?
A) 5 gallons
B) 10 gallons
C) 1 gallon
D) 2.5 gallons
  • 3. How often should you perform a water change in a guppy tank?
A) No water changes needed
B) 50% daily
C) 100% monthly
D) 25% weekly
  • 4. What type of food is best for guppies?
A) Cat food
B) Goldfish flakes
C) Dog food
D) High-quality flake food
  • 5. What do guppies need in their diet for vibrant colors?
A) Carotenoids
B) Salt
C) Sugar
D) Oil
  • 6. Why should you use a sponge filter in a guppy tank?
A) To heat the water
B) To add carbon dioxide
C) To protect fry from being sucked in
D) To increase water flow
  • 7. What is the gestation period for guppies?
A) 45-60 days
B) 90-120 days
C) 21-30 days
D) 7-14 days
  • 8. What is a sign that a female guppy is close to giving birth?
A) Gills turn white
B) Scales fall off
C) Gravid spot darkens
D) Fins disappear
  • 9. What is the 'gravid spot' on a female guppy?
A) A disease on the tail
B) Area near the anal fin that darkens when pregnant
C) A wound
D) A birthmark
  • 10. Why should you separate guppy fry from adults?
A) Adults may eat the fry
B) Fry will pollute the water
C) Fry need more light
D) Fry need colder water
  • 11. What is a good first food for guppy fry?
A) Sand
B) Adult flake food
C) Gravel
D) Baby brine shrimp
  • 12. What is the ideal pH level for a guppy tank?
A) 8.0-9.0
B) 5.0-6.0
C) 6.8-7.8
D) 9.5-10.5
  • 13. What is the term for the process of acclimating new guppies to a tank?
A) Tank diving
B) Drip acclimation
C) Forced swimming
D) Water boarding
  • 14. What plants are good for guppy tanks?
A) Cactus
B) Java moss
C) Rose bush
D) Venus flytrap
  • 15. Why are plants beneficial in a guppy tank?
A) Provide hiding places and oxygen
B) Attract predators
C) Turn water blue
D) Block sunlight
  • 16. What is Ich?
A) A type of plant
B) A type of algae
C) A beneficial bacteria
D) A parasitic disease
  • 17. What is a common symptom of Ich?
A) Swollen belly
B) Red fins
C) White spots on the body
D) Green scales
  • 18. What can cause ammonia spikes in a guppy tank?
A) Perfect water conditions
B) Too few fish
C) Overfeeding
D) Underfeeding
  • 19. What is the nitrogen cycle?
A) Water cycle
B) Food cycle
C) Light cycle
D) Conversion of ammonia to nitrite to nitrate
  • 20. What should nitrate levels be kept under in a guppy tank?
A) 20 ppm
B) 100 ppm
C) 80 ppm
D) 50 ppm
  • 21. What does the term 'culling' refer to in guppy breeding?
A) Feeding the fish
B) Adding more fish
C) Removing undesirable fish from the breeding pool
D) Cleaning the tank
  • 22. What is the purpose of aeration in a guppy tank?
A) To remove waste
B) To add carbon dioxide
C) To increase oxygen levels
D) To heat the water
  • 23. Which of the following is NOT a good tank mate for guppies?
A) Snails
B) Piranhas
C) Neon Tetras
D) Corydoras Catfish
  • 24. What is the advantage of using a breeder box?
A) To filter the water
B) To protect fry from being eaten
C) To heat the water
D) To add more plants
  • 25. What type of lighting is best for a guppy tank?
A) No lighting
B) LED lighting
C) Incandescent lighting
D) Black lights
  • 26. How often should you clean the gravel in a guppy tank?
A) Monthly
B) During water changes
C) Never
D) Daily
  • 27. Why is it important to dechlorinate tap water before adding it to a guppy tank?
A) Chlorine changes the pH
B) Chlorine is toxic to fish
C) Chlorine makes the water cloudy
D) Chlorine is too cold for guppies
  • 28. What can you use to buffer the pH in a guppy tank?
A) Lemon juice
B) Sugar
C) Bleach
D) Crushed coral
  • 29. What is the scientific name for the guppy?
A) Betta splendens
B) Danio rerio
C) Carassius auratus
D) Poecilia reticulata
  • 30. What is a common cause of fin rot in guppies?
A) Too much oxygen
B) Too much light
C) Poor water quality
D) Overfeeding plants
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