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How to Identify and Classify Rasboras - Test
Contributed by: Wallis
  • 1. What is the most distinguishing feature generally used to identify Rasboras?
A) Eye color
B) Fin size
C) Body markings and patterns
D) Scale count
  • 2. Which body shape is common among Rasboras?
A) Torpedo-shaped
B) Eel-like
C) Disk-shaped
D) Box-shaped
  • 3. What type of fin is most useful for Rasbora classification?
A) Caudal fin
B) Lateral line or marking on their body
C) Pectoral fin
D) Dorsal fin
  • 4. What behavior is a strong clue when classifying Rasboras in a tank?
A) Bottom-dwelling behavior
B) Solitary behavior
C) Aggressive behavior
D) Schooling behavior
  • 5. What are the common color patterns seen in Rasboras?
A) Stripes, spots, and wedges
B) Polka dots and triangles
C) Solid primary colors
D) Swirls and curves
  • 6. What kind of water parameters should be considered when identifying Rasboras?
A) Tap water hardness
B) Their natural habitat's water conditions
C) Saltwater conditions
D) Alkaline water only
  • 7. What is the typical size range of most Rasbora species?
A) 8-10 inches
B) 1-3 inches
C) Over 12 inches
D) 5-7 inches
  • 8. Which marking is characteristic of the Harlequin Rasbora (Trigonostigma heteromorpha)?
A) A series of vertical stripes
B) Small, scattered spots
C) A bright red stripe
D) A large, triangular black marking
  • 9. Which of the following Rasboras is known for its bright orange coloration?
A) Scissortail Rasbora (Rasbora trilineata)
B) Espei Rasbora (Trigonostigma espei)
C) Lambchop Rasbora (Trigonostigma espei)
D) Glowlight Rasbora (Trigonostigma hengeli)
  • 10. What does 'Trigonostigma' refer to in the scientific name of some Rasboras?
A) A specific color pattern
B) A type of fin
C) A geographic location
D) A genus of Rasboras
  • 11. How does knowing the geographical origin of a Rasbora help with identification?
A) Determines its diet
B) Indicates its lifespan
C) Changes its coloration
D) Narrows down the potential species based on range
  • 12. What is the distinguishing feature of a Glowlight Rasbora (Trigonostigma hengeli)?
A) A bright orange stripe
B) Bright blue eyes
C) A black spot on the tail
D) Completely transparent fins
  • 13. The Scissortail Rasbora (Rasbora trilineata) is named for what?
A) Its mouth shape
B) Its tail fin shape
C) Its aggressive behavior
D) The pattern on its body
  • 14. What physical characteristic differentiates a male and female Rasbora?
A) Males have longer fins
B) Females are typically rounder.
C) Males are larger
D) Females have brighter colors
  • 15. What is the purpose of the 'lateral line' on a Rasbora?
A) Sensory organ for detecting vibrations
B) For attracting mates
C) For respiration
D) For camouflage
  • 16. Which fin is used for braking and precise movements?
A) Anal fin
B) Caudal fin
C) Pectoral fins
D) Dorsal fin
  • 17. What primary food source do Rasboras consume in the wild?
A) Small invertebrates
B) Plant roots
C) Algae
D) Large insects
  • 18. What is one important aspect to observe about the markings on a Rasbora's body?
A) Marking shape and position
B) Marking texture
C) Marking temperature
D) Marking smell
  • 19. How can you distinguish between similar-looking Rasbora species?
A) Comparing their eating habits
B) Comparing their swimming speed
C) Comparing the intensity of the colors
D) Comparing their sleeping patterns
  • 20. Which Rasbora is known for a black wedge and an orange body?
A) Glowlight Rasbora (Trigonostigma hengeli)
B) Harlequin Rasbora (Trigonostigma heteromorpha)
C) Emerald Eye Rasbora (Rasbora dorsiocellata)
D) Lambchop Rasbora (Trigonostigma espei)
  • 21. What is the general classification for the majority of rasbora species?
A) Brackish fish
B) Saltwater fish
C) Amphibious fish
D) Freshwater fish
  • 22. What should one consider when identifying color morphs within a Rasbora species?
A) Entirely different species
B) Water pH
C) Variation within the specific species
D) Diet changes
  • 23. What key factor affects a Rasbora's coloration?
A) Stress levels
B) Music played near the tank
C) Room temperature
D) The substrate used in the tank
  • 24. What is the most common mistake in identifying Rasboras?
A) Confusing similar species
B) Assuming all rasboras are the same size
C) Overlooking the lateral line
D) Ignoring the fins
  • 25. What is an important thing to know when identifying rasboras?
A) Their lifespan
B) Their preferred temperature
C) Their ideal tank size
D) Their natural habitat
  • 26. What is the relationship between Rasboras and their environments?
A) Unaffected by their environment
B) Prefers all types of environments equally
C) Can adapt to any environment
D) Specific to their environments
  • 27. What characteristic is unique to the Emerald Eye Rasbora (Rasbora dorsiocellata)?
A) Emerald green spot
B) Yellow fins
C) Red markings
D) Blue tail
  • 28. What is the purpose of scientific names (binomial nomenclature) in Rasbora identification?
A) To confuse hobbyists
B) To ensure unique identification
C) To make the fish sound exotic
D) To simplify identification
  • 29. What feature on the Rasbora fish is an indicator of its health?
A) Scale Density
B) Fin Size
C) Weight
D) Coloration
  • 30. What tool is most useful for observing minute markings for identification purposes?
A) Magnifying glass
B) Microscope
C) Telescope
D) Binoculars
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