How to Raise Crabs
  • 1. What is the ideal salinity level for crab rearing?
A) Salt water
B) Distilled water
C) Brackish water
D) Fresh water
  • 2. What is a common food source for juvenile crabs?
A) Rocks
B) Brine shrimp
C) Sand
D) Gravel
  • 3. What is a primary concern regarding crab habitats?
A) Color
B) Decorations
C) Lighting
D) Water quality
  • 4. What is the process of shedding an exoskeleton called?
A) Growing
B) Shedding
C) Changing
D) Molting
  • 5. Why is providing hiding places important for crabs?
A) Reduces stress
B) Increases appetite
C) Enhances color
D) Improves swimming
  • 6. What water parameter is important to monitor to avoid health issues?
A) Sugar
B) Flour
C) Salt
D) Ammonia
  • 7. How often should water changes typically be performed?
A) Regularly
B) Irregularly
C) Never
D) Annually
  • 8. What type of substrate is generally preferred for crab tanks?
A) Sand
B) Concrete
C) Plastic
D) Gravel
  • 9. Why is proper aeration important in a crab tank?
A) Carbon dioxide
B) Oxygen supply
C) Nitrogen
D) Heat
  • 10. What is a common sign of stress in crabs?
A) Eating more
B) Increased activity
C) Brighter color
D) Lethargy
  • 11. What is cannibalism a risk of, when raising crabs?
A) Underfeeding
B) Overcrowding
C) Clean water
D) Bright light
  • 12. What behavior is important to note during the molting process?
A) Do not disturb
B) Remove old shell
C) Feed the crab
D) Assist the crab
  • 13. What type of food is good for calcium intake?
A) Cuttlebone
B) Apples
C) Bread
D) Lettuce
  • 14. What is the ideal water temperature for most crab species?
A) Boiling
B) Freezing
C) Room temperature
D) Very cold
  • 15. What is a potential source of disease in a crab habitat?
A) Clean substrate
B) Good filtration
C) Balanced diet
D) Poor hygiene
  • 16. What is the best type of container for raising blue crabs?
A) Plastic bag
B) Metal bucket
C) Cardboard box
D) Aquarium
  • 17. What is an important aspect of a crab's diet for shell hardening after molting?
A) Protein
B) Fat
C) Carbohydrates
D) Calcium
  • 18. What is an indicator of healthy crab development?
A) Loss of color
B) Regular molting
C) No molting
D) Constant hiding
  • 19. What could too much sunlight in a crab tank cause?
A) Faster growth
B) Algae bloom
C) Cleaner water
D) Increased happiness
  • 20. Why should tap water always be treated before use in a crab tank?
A) Increase pH
B) Add sugar
C) Add ammonia
D) Remove chlorine
  • 21. What material is a good alternative to live plants in a crab tank?
A) Metal sculptures
B) Plastic plants
C) Glass beads
D) Cardboard cutouts
  • 22. What is an example of a live food you can feed crabs?
A) Bread
B) Rocks
C) Pasta
D) Bloodworms
  • 23. What is the purpose of using a filter in a crab tank?
A) Remove waste
B) Add food
C) Change water color
D) Heat the water
  • 24. What does the term 'berried' refer to in female crabs?
A) Carrying eggs
B) Eating algae
C) Hibernating
D) Molting
  • 25. What is important about the height of the water compared to available land space?
A) No need for balance
B) All water
C) All land
D) Balance
  • 26. Which element must be in the water for healthy crabs?
A) Bromine
B) Iodine
C) Fluorine
D) Chlorine
  • 27. What type of crab is typically not raised in brackish water?
A) Spider Crab
B) Hermit Crab
C) Fiddler Crab
D) Mangrove Crab
  • 28. What should a Crab's environment never have?
A) Copper
B) Hiding Places
C) Sand
D) Brackish Water
  • 29. What is a good source of protein to supplement your crabs diet?
A) Grains
B) Vegetables
C) Fruits
D) Fish flakes
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