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How to Raise Clownfishes
Contributed by: Boyd
  • 1. What is the ideal water temperature for clownfish breeding?
A) 88-90°F (31.1-32.2°C)
B) 68-70°F (20-21.1°C)
C) 72-74°F (22.2-23.3°C)
D) 80-82°F (26.7-27.8°C)
  • 2. What is the optimal salinity for a clownfish breeding tank?
A) 1.020-1.021 specific gravity
B) 1.015-1.016 specific gravity
C) 1.025-1.026 specific gravity
D) 1.030-1.031 specific gravity
  • 3. What type of anemone is commonly hosted by Ocellaris Clownfish?
A) Condylactis gigantea (Haitian Anemone)
B) Heteractis magnifica (Magnificent Anemone)
C) Entacmaea quadricolor (Bubble Tip Anemone)
D) Stichodactyla gigantea (Giant Carpet Anemone)
  • 4. What is the typical clutch size for a pair of clownfish?
A) 1000-1500 eggs
B) 50-100 eggs
C) 10-20 eggs
D) 300-700 eggs
  • 5. How long does it take for clownfish eggs to hatch?
A) 15-20 days
B) 6-11 days
C) 30-45 days
D) 1-2 days
  • 6. What is the first food that clownfish larvae typically eat?
A) Brine Shrimp
B) Rotifers
C) Copepods
D) Flake Food
  • 7. What is the ideal photoperiod for raising clownfish larvae?
A) 12 hours of light
B) 16 hours of light
C) 24 hours of light
D) 8 hours of light
  • 8. How often should you feed clownfish larvae?
A) Once a week
B) Every other day
C) Multiple times per day
D) Once a day
  • 9. What water parameter is crucial to maintain during larval rearing?
A) Low salinity
B) High nitrate levels
C) High phosphate levels
D) High water quality (low ammonia and nitrite)
  • 10. When do clownfish larvae typically begin metamorphosis?
A) Around 3-5 days post hatch
B) Around 60-70 days post hatch
C) Around 30-40 days post hatch
D) Around 10-14 days post hatch
  • 11. What type of food can be introduced as clownfish larvae metamorphose?
A) Flake Food
B) Baby Brine Shrimp
C) Seaweed
D) Pellet Food
  • 12. What is the purpose of a 'grow-out' tank?
A) To display clownfish in a retail setting.
B) To breed clownfish.
C) To quarantine sick fish.
D) To raise juvenile clownfish to a larger size.
  • 13. What is the role of the female clownfish in a breeding pair?
A) Eats the eggs
B) Guards the eggs only
C) Lays the eggs
D) Fertilizes the eggs
  • 14. What is the role of the male clownfish in a breeding pair?
A) Eats the eggs
B) Lays the eggs
C) Fertilizes and guards the eggs
D) Only guards the eggs
  • 15. What is the typical lifespan of a clownfish in captivity?
A) 1-2 years
B) 5-10 years
C) 6 months
D) 20-30 years
  • 16. Why is it important to remove uneaten food from a larval tank?
A) To make the tank look cleaner
B) To prevent water quality issues
C) To help the larvae find the food easier
D) To conserve food
  • 17. What is 'velvet disease' caused by?
A) A fungal infection
B) Poor water quality
C) A bacterial infection
D) A parasitic dinoflagellate
  • 18. What is the benefit of using a sponge filter in a larval tank?
A) It heats the water
B) It adds oxygen to the water very quickly
C) It removes all particles from the water
D) It provides biological filtration without harming larvae
  • 19. What is the term for the process of acclimating clownfish to a new tank?
A) Drip Acclimation
B) Aeration
C) Quarantine
D) Osmosis
  • 20. Why are regular water changes important in a clownfish tank?
A) To lower the temperature
B) To add more food
C) To replenish trace elements and remove nitrates
D) To increase salinity
  • 21. What is the primary function of a protein skimmer?
A) Reduce salinity
B) Remove organic waste
C) Increase pH
D) Add oxygen
  • 22. What are common signs of stress in clownfish?
A) Erratic swimming, increased coloration, aggression towards tank mates
B) Lethargy, increased appetite, swimming at the top of the tank
C) Rapid breathing, hiding, loss of appetite
D) Increased activity, bright colors, increased appetite
  • 23. What is the purpose of a quarantine tank?
A) To breed fish in a controlled environment
B) To observe and treat new fish before introducing them to the main tank
C) To store extra aquarium equipment
D) To grow algae for fish food
  • 24. What is the potential impact of copper-based medications on invertebrates?
A) Highly toxic
B) Beneficial
C) Slightly beneficial
D) Neutral
  • 25. What is the ideal pH range for a clownfish tank?
A) 8.5-9.0
B) 8.1-8.4
C) 7.5-7.8
D) 6.5-7.0
  • 26. Which of the following is considered a peaceful tank mate for clownfish?
A) Pufferfish
B) Triggerfish
C) Firefish Goby
D) Lionfish
  • 27. What type of substrate is generally recommended for a clownfish tank?
A) Crushed coral
B) Aragonite sand
C) Gravel
D) Bare bottom
  • 28. What is the process of removing chlorine from tap water called?
A) Dechlorination
B) Reverse osmosis
C) Nitrification
D) Denitrification
  • 29. What is the primary cause of 'Ich' (white spot disease)?
A) Fungal infection
B) Bacterial infection
C) Parasitic protozoan
D) Viral infection
  • 30. What is the best practice when introducing a new anemone to a tank with clownfish?
A) Allow the anemone to settle before introducing the clownfish.
B) Place the anemone near the clownfish's favorite spot.
C) Physically attach the clownfish to the anemone.
D) Immediately introduce the clownfish to encourage hosting.
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