A) 7.0 - 8.5 B) 6.0 - 6.5 C) 9.0 - 9.5 D) 5.0 - 5.5
A) 1 foot B) 3 feet C) 2 feet D) 6 inches
A) Chemical filter B) Biological filter C) Mechanical filter D) UV sterilizer
A) 10-20% weekly B) 5% monthly C) 50% monthly D) 100% yearly
A) Healthy fish B) Algae growth C) Clear water D) Cloudy water
A) 30-40°F B) 65-75°F C) 40-50°F D) 85-95°F
A) 1 day B) 4-6 weeks C) 2 weeks D) 1 week
A) Algae B) Ich C) Snails D) Water lilies
A) Low-protein food B) Flake food C) High-protein food D) Algae wafers
A) Pond location relative to moon phase B) Sunlight C) Decomposing organic matter D) Fish waste
A) Krypton Halide B) Carbonate Hardness C) Potassium Hydride D) Keto Hydrate
A) Filters the water B) Reduces algae growth C) Provides oxygen for the fish D) Keeps the water warm
A) Bleach B) Beneficial bacteria C) Vinegar D) Salt
A) 1 koi per 250-500 gallons B) 1 koi per 50 gallons C) 1 koi per 1000 gallons D) 1 koi per 10 gallons
A) Poison Ivy B) Water lilies C) Cattails D) Water hyacinth
A) Bonsai B) Sumo C) Origami D) Nishikigoi
A) Makes them more colorful B) Burns their gills C) Helps them grow faster D) Repels parasites
A) Removes surface debris B) Adds oxygen to the water C) Filters the water D) Heats the water
A) Ulcers B) Increased activity C) Brighter colors D) Increased appetite
A) Air stone B) Aquatic plants C) Pond dye D) Rock salt
A) Algae bloom B) High ammonia levels C) Parasites D) Bacterial infection
A) Feeding the herons B) Adding more fish C) Netting over the pond D) Planting tall grasses
A) Reduces water clarity B) Ineffective against parasites C) Causes algae blooms D) Toxic to koi
A) Stop feeding them completely B) Move them indoors to a heated tank C) Keep a hole in the ice for gas exchange D) Add antifreeze to the pond
A) Sanke B) Showa C) Kohaku D) Ogon
A) Visibility from the house B) Sunlight exposure C) Soil type D) Proximity to trees
A) Removes solid waste B) Circulates the water C) Adds oxygen to the water D) Heats the water
A) Observe the fish behavior B) Smell the water C) Taste the water D) Use a test kit
A) Chemical filter B) Biological filter C) Settlement chamber D) UV sterilizer |