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