A) 88-92°F (31-33°C) B) 70-74°F (21-23°C) C) 82-86°F (28-30°C) D) 76-80°F (24-27°C)
A) 7.5 - 8.5 B) 8.5 - 9.0 C) 5.0 - 5.5 D) 6.0 - 7.0
A) Soft, acidic water B) Tap water without treatment C) Hard, alkaline water D) Brackish water
A) 10% monthly B) No water changes needed C) 50% monthly D) 25-50% weekly
A) Velvet B) Hexamita (Hole-in-the-Head) C) Ich (White Spot Disease) D) Fin Rot
A) Vegetable pellets B) Beefheart mix C) Bread crumbs D) Goldfish flakes
A) 10 gallons B) 40 gallons C) 20 gallons D) 75 gallons
A) Undergravel filtration B) Sponge and Biological filtration C) No filtration required D) Internal power filter only
A) Improves their color B) Weakens the immune system C) Makes them grow faster D) Makes them more aggressive
A) To make them feel comfortable B) To prevent disease outbreaks C) To encourage breeding D) To save space
A) Coarse gravel B) Crushed coral C) Bare bottom or fine sand D) Large rocks
A) Drip acclimation B) Float the bag for 5 minutes C) Pour them directly into the tank D) Turn off the lights for 24 hours
A) Erratic swimming B) Clamped fins and hiding C) Lying on the bottom D) Bright colors and active swimming
A) UVB lighting B) No lighting needed C) Low to moderate lighting D) Very bright lighting
A) Too much light B) Old age C) Overfeeding D) Stress or poor water quality
A) Plecos B) Aggressive or nippy fish C) Tetras D) Corydoras
A) Build bubble nests B) Lay eggs on a vertical surface C) Scatter eggs on the substrate D) Livebearers
A) Adds oxygen to the water B) Filters the water C) Hides the fish D) Provides a surface for Discus to lay eggs on
A) Parents care for the eggs and fry B) Parents only care for the eggs, not the fry C) Parents eat the eggs D) Parents ignore the eggs
A) Flake food B) Secretion from the parents' skin C) Vegetable matter D) Brine shrimp
A) Kills bacteria B) Lowers pH and softens water C) Raises pH and hardens water D) Adds nutrients to the water
A) Rapid breathing B) White, stringy feces C) Bulging eyes D) Bright red gills
A) Ignore water changes B) Keep the temperature low C) Maintain excellent water quality D) Overmedicate the tank
A) Increases oxygen levels B) Decreases pH C) Increases pH D) Lowers oxygen levels
A) 5 adult Discus per 10 gallons B) 1 adult Discus per 10 gallons C) 10 adult Discus per 10 gallons D) 20 adult Discus per 10 gallons
A) Removes harmful chemicals and minerals B) Adds minerals to the water C) Lowers the temperature D) Raises the pH
A) Feed small amounts multiple times a day B) Leave food in the tank all the time C) Feed one large meal a day D) Only feed once a week
A) Duckweed and Water Hyacinth B) Cattails and Reeds C) Amazon Swords and Anubias D) Saltwater mangroves
A) Resistance to disease B) Increased susceptibility to peppering C) Faster growth rate D) Enhanced color intensity
A) Black spots caused by pigment cells B) Iridescent scales caused by genetics C) White spots caused by a parasite D) Red spots caused by bacteria |