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How to Identify and Classify Tetras - Test
Contributed by: Wallis
  • 1. What is the defining characteristic of the Characidae family, to which tetras belong?
A) Barbels
B) Adipose fin
C) Large scales
D) Caudal fin stripes
  • 2. Which tetra is known for its bright red stripe from gills to tail?
A) Neon Tetra
B) Ember Tetra
C) Black Skirt Tetra
D) Cardinal Tetra
  • 3. What body shape is commonly seen in the Black Skirt Tetra?
A) Torpedo shape
B) Diamond shape
C) Cylindrical shape
D) Round shape
  • 4. Which tetra exhibits a shimmering orange-red coloration?
A) Lemon Tetra
B) Flame Tetra
C) Glowlight Tetra
D) Ember Tetra
  • 5. What distinctive marking is present on the head of the Head and Tail Light Tetra?
A) A red spot
B) A dark stripe
C) Two bright spots
D) No markings
  • 6. The Lemon Tetra is best identified by its...
A) Yellow body color
B) Red eyes
C) Blue shimmer
D) Black stripe
  • 7. Which tetra is known for its peaceful nature and schooling behavior?
A) Neon Tetra
B) Buenos Aires Tetra
C) Serpae Tetra
D) Pristella Tetra
  • 8. What type of diet is generally suitable for most tetra species?
A) Omnivorous
B) Herbivorous
C) Piscivorous
D) Carnivorous
  • 9. What is the ideal water temperature range for most tetra species?
A) 72-82°F
B) 85-95°F
C) 50-60°F
D) 60-70°F
  • 10. Which tetra species is known for its fin-nipping tendencies?
A) Cardinal Tetra
B) Serpae Tetra
C) Neon Tetra
D) Glowlight Tetra
  • 11. What type of environment do tetras typically prefer in an aquarium?
A) Bare tank
B) Saltwater tank
C) Planted tank
D) Brackish tank
  • 12. What water parameter is crucial for tetra health?
A) Saltwater
B) Soft, acidic water
C) Hard, alkaline water
D) Brackish water
  • 13. Which tetra has a transparent body and distinct black and yellow stripes?
A) Pristella Tetra
B) Penguin Tetra
C) X-Ray Tetra
D) Bleeding Heart Tetra
  • 14. What unique swimming behavior is seen in Penguin Tetras?
A) Swimming in circles
B) Resting on the bottom
C) Rapid darting
D) Head-up angle
  • 15. The Diamond Tetra is known for its...
A) Shimmering scales
B) Black spots
C) Red fins
D) Blue stripe
  • 16. Which tetra displays a heart-shaped red marking on its body?
A) Glowlight Tetra
B) Flame Tetra
C) Bleeding Heart Tetra
D) Ruby Tetra
  • 17. What type of lighting is generally recommended for tetras?
A) Dim lighting
B) Bright lighting
C) UV lighting
D) Infrared lighting
  • 18. Which tetra can tolerate slightly cooler water temperatures than most others?
A) Buenos Aires Tetra
B) Cardinal Tetra
C) Ember Tetra
D) Neon Tetra
  • 19. What is the minimum recommended tank size for a school of tetras?
A) 20 gallons
B) 10 gallons
C) 5 gallons
D) 2.5 gallons
  • 20. Which tetra is named for its distinctive glow?
A) Cardinal Tetra
B) Neon Tetra
C) Ember Tetra
D) Glowlight Tetra
  • 21. What is the purpose of tannins in the water for some tetra species?
A) Add nutrients
B) Raise pH
C) Mimic natural habitat
D) Increase oxygen levels
  • 22. Which is NOT a common tetra disease?
A) Ichthyophthirius multifiliis in saltwater fish
B) Neon Tetra Disease
C) Ich
D) Fin Rot
  • 23. What feature is often used to distinguish between male and female tetras?
A) Fin length
B) Color intensity
C) Body shape
D) Eye size
  • 24. What is the typical lifespan of most tetra species in captivity?
A) 10-15 years
B) 1-2 years
C) 3-8 years
D) 20+ years
  • 25. What is the scientific name for the Neon Tetra?
A) Moenkhausia pittieri
B) Hemigrammus erythrozonus
C) Hyphessobrycon eques
D) Paracheirodon innesi
  • 26. Which tetra is known for its active schooling behavior and hardiness?
A) Cardinal Tetra
B) Black Skirt Tetra
C) Ember Tetra
D) Glowlight Tetra
  • 27. What type of food is best for newly hatched tetra fry?
A) Infusoria
B) Bloodworms
C) Flake food
D) Brine shrimp
  • 28. Which tetra gets its name from a South American river?
A) Amazon Tetra
B) Para Tetra
C) Rio Negro Tetra
D) Orinoco Tetra
  • 29. What is a key factor in preventing Neon Tetra Disease?
A) High temperature
B) Overfeeding
C) Good water quality
D) Bright lighting
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