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How to Raise Crabs
Contributed by: Boyd
  • 1. What is the ideal salinity level for crab rearing?
A) Brackish water
B) Distilled water
C) Salt water
D) Fresh water
  • 2. What is a common food source for juvenile crabs?
A) Sand
B) Brine shrimp
C) Rocks
D) Gravel
  • 3. What is a primary concern regarding crab habitats?
A) Decorations
B) Water quality
C) Lighting
D) Color
  • 4. What is the process of shedding an exoskeleton called?
A) Molting
B) Changing
C) Shedding
D) Growing
  • 5. Why is providing hiding places important for crabs?
A) Improves swimming
B) Increases appetite
C) Enhances color
D) Reduces stress
  • 6. What water parameter is important to monitor to avoid health issues?
A) Ammonia
B) Flour
C) Salt
D) Sugar
  • 7. How often should water changes typically be performed?
A) Never
B) Regularly
C) Annually
D) Irregularly
  • 8. What type of substrate is generally preferred for crab tanks?
A) Plastic
B) Gravel
C) Concrete
D) Sand
  • 9. Why is proper aeration important in a crab tank?
A) Heat
B) Carbon dioxide
C) Nitrogen
D) Oxygen supply
  • 10. What is a common sign of stress in crabs?
A) Eating more
B) Brighter color
C) Lethargy
D) Increased activity
  • 11. What is cannibalism a risk of, when raising crabs?
A) Bright light
B) Clean water
C) Overcrowding
D) Underfeeding
  • 12. What behavior is important to note during the molting process?
A) Remove old shell
B) Do not disturb
C) Feed the crab
D) Assist the crab
  • 13. What type of food is good for calcium intake?
A) Apples
B) Lettuce
C) Cuttlebone
D) Bread
  • 14. What is the ideal water temperature for most crab species?
A) Very cold
B) Boiling
C) Freezing
D) Room temperature
  • 15. What is a potential source of disease in a crab habitat?
A) Clean substrate
B) Poor hygiene
C) Good filtration
D) Balanced diet
  • 16. What is the best type of container for raising blue crabs?
A) Cardboard box
B) Plastic bag
C) Metal bucket
D) Aquarium
  • 17. What is an important aspect of a crab's diet for shell hardening after molting?
A) Fat
B) Protein
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) Increased happiness
B) Algae bloom
C) Faster growth
D) Cleaner water
  • 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) Plastic plants
B) Metal sculptures
C) Cardboard cutouts
D) Glass beads
  • 22. What is an example of a live food you can feed crabs?
A) Pasta
B) Rocks
C) Bloodworms
D) Bread
  • 23. What is the purpose of using a filter in a crab tank?
A) Add food
B) Remove waste
C) Heat the water
D) Change water color
  • 24. What does the term 'berried' refer to in female crabs?
A) Carrying eggs
B) Hibernating
C) Eating algae
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) Balance
D) All land
  • 26. Which element must be in the water for healthy crabs?
A) Chlorine
B) Bromine
C) Fluorine
D) Iodine
  • 27. What type of crab is typically not raised in brackish water?
A) Hermit Crab
B) Fiddler Crab
C) Spider Crab
D) Mangrove Crab
  • 28. What should a Crab's environment never have?
A) Copper
B) Sand
C) Hiding Places
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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