A) 6.5 - 7.0 B) 5.0 - 5.5 C) 7.5 - 8.0 D) 8.0 - 8.5
A) 10 gallons B) 20 gallons C) 40 gallons D) 5 gallons
A) 78-84°F (25-29°C) B) 85-90°F (29-32°C) C) 70-75°F (21-24°C) D) 65-70°F (18-21°C)
A) Frozen bloodworms B) Freeze-dried Tubifex worms (only) C) Live brine shrimp D) Flake food
A) Small, carpeting plants B) No plants at all C) Floating plants only D) Tall, broad-leaved plants
A) Weekly or bi-weekly B) Every other month C) Only when the water looks dirty D) Monthly
A) Active swimming B) Vibrant colors C) Aggressive behavior toward other fish D) Clamped fins
A) Feline leukemia B) Ich (white spot disease) C) Fin rot in saltwater fish D) Canine distemper
A) Flush the old tank out B) Release them directly into the tank C) Keep them in a bag for 24 hours D) Quarantine them first
A) Good water quality and temperature B) Overcrowding C) Sudden drop in temperature D) Introduction of new fish
A) The substrate B) Flat surfaces like slate or plant leaves C) The glass of the tank near the substrate D) The filter
A) 2-3 days B) 2 weeks C) 5-7 days D) 1 day
A) Flake food B) Newly hatched brine shrimp C) Bloodworms D) Vegetable matter
A) Once a week B) Once a day C) Several times a day D) Every other day
A) To prevent fry from being sucked in B) To remove all bacteria C) To provide strong currents D) To heat the water
A) Uneven growth B) Excessive aggression C) Too rapid growth D) Lack of appetite
A) Provide plenty of hiding places B) Overcrowd the tank C) Keep only one angelfish D) Use strong water currents
A) Helps filter the water B) Provides a suitable spawning surface C) Provides oxygen D) Keeps the tank clean
A) Training them to do tricks B) Acclimating them to a new tank C) Treating them for diseases D) Preparing them for breeding with a rich diet
A) Soft to moderately hard B) Extremely hard C) Very hard D) Very soft
A) Never change the water B) Maintain good water quality C) Overfeed them D) Keep the tank dark
A) Yes, but only with other angelfish B) Yes, as long as the tank is large enough C) Yes, they are peaceful with everyone D) No, they can be aggressive towards small fish
A) Moderate lighting B) Very bright lighting C) No lighting D) UV lighting
A) Fighting with each other B) Cleaning a flat surface C) Losing color D) Hiding in the corner
A) To filter the water B) To increase oxygen levels C) To heat the water D) To create strong currents
A) It is difficult to determine externally. B) Females have longer fins. C) Males are larger than females. D) Males have brighter colors.
A) Too much light B) Too much food C) Fungus D) Too much oxygen
A) To soften the water B) To feed the fry C) To provide oxygen D) To prevent fungal growth
A) Body size of 1-2 inches B) Body size of 3-4 inches C) Body size of 5 inches and up D) Body size of less than 1 inch
A) It makes them grow faster than normal. B) It enhances their coloration and breeding. C) It is not important. D) It reduces their lifespan. |