A) Round and spherical B) Elongated and somewhat compressed laterally C) Square and boxy D) Flat and pancake-like
A) Characidae B) Cichlidae C) Cyprinidae D) Poeciliidae
A) Exclusively saltwater B) Brackish and freshwater C) Arctic waters D) Exclusively freshwater
A) Round tail fin B) Bifurcated tail fin C) Lyretail tail fin D) Sailfin dorsal fin
A) Differences in coloration between different species B) Differences in size between juveniles and adults C) Differences in appearance between males and females D) Differences in behavior between different populations
A) Males have a gonopodium B) Males are always more colorful C) Females have a more pointed dorsal fin D) Females are always larger
A) A modified anal fin used for reproduction B) A type of gill covering C) A defensive spine D) A specialized sensory organ
A) The female gives birth to live young B) The fish requires live food C) The fish is always peaceful D) The fish lays eggs
A) Gold, bronze, indigo, violet B) Black, silver, orange, white C) Purple, green, blue, red D) Pink, brown, grey, turquoise
A) Danio rerio B) Poecilia latipinna or Poecilia sphenops C) Betta splendens D) Carassius auratus
A) Poecilia latipinna B) Poecilia reticulata C) Poecilia velifera D) Poecilia sphenops
A) Large dorsal fin B) Bright coloration C) Elongated caudal fin D) Spiked scales
A) Poecilia formosa B) Poecilia sphenops C) Poecilia latipinna D) Poecilia reticulata
A) Small size B) Bright red coloration C) Exceptionally large dorsal fin D) Tolerance to very cold water
A) Dalmatian Molly B) All of the above are hybrid. C) Gold Dust Molly D) Balloon Molly
A) The large dorsal fin B) The color pattern C) The rounded body shape D) The way they swim
A) Gravel B) Insects only C) Algae and plant matter D) Exclusively meat-based foods
A) 60-70°F (15-21°C) B) 72-82°F (22-28°C) C) 85-95°F (29-35°C) D) 32-40°F (0-4°C)
A) Water Hardness B) Ammonia and Nitrite C) Oxygen Level D) Salinity
A) It's a normal swimming pattern B) It's a sign of stress or illness C) It's a sign it wants food D) It's a mating behavior
A) It can help prevent diseases and improve osmoregulation B) It makes the water clearer C) It lowers the pH D) It promotes algae growth
A) Around 60 days B) Around 7 days C) Around 28-35 days D) Around 180 days
A) 1-2 years B) 3-5 years C) 10-15 years D) 6 months
A) Fish disease B) A type of food C) Baby Fish D) Adult Fish
A) Expose them to high water flow B) Overfeed them C) Separate them from the adults D) Keep them in direct sunlight
A) Cactus B) Poison Ivy C) Rose Bush D) Java Moss
A) Guppies B) Corydoras Catfish C) Aggressive Cichlids D) Neon Tetras
A) The bottom fin B) The gill covering C) The tail fin D) The top fin
A) It may be stressed or ill B) It's playing hide-and-seek C) It's sleeping D) It's preparing to lay eggs
A) It increases the water's hardness B) It provides hiding places and can lower pH slightly. C) It adds excessive tannins that can cloud water D) It makes the water brighter |