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