A) Anal fin B) Dorsal fin C) Adipose fin D) Caudal fin
A) Eel-shaped B) Globular C) Disk-shaped D) Torpedo-shaped
A) Plant roots B) Algae C) Insects and invertebrates D) Detritus
A) Brackish B) Very acidic C) Slightly acidic to neutral D) Highly alkaline
A) Glowlight Danio (Danio choprai) B) Giant Danio (Devario aequipinnulus) C) Pearl Danio (Danio albolineatus) D) Zebra Danio (Danio rerio)
A) A related genus of larger Danios B) A disease affecting Danios C) A type of Danio food D) A specific fin pattern
A) 5-7 inches B) 8-10 inches C) 1 foot or more D) 1-3 inches
A) Nocturnal hunting B) Aggressive territoriality C) Active schooling D) Solitary bottom-dwelling
A) Color pattern B) Scale size C) Body shape D) Fin ray count
A) South America B) Australia C) Africa D) Southeast Asia
A) Leopard Danio (Danio frankei) B) Zebra Danio (Danio rerio) C) Pearl Danio (Danio albolineatus) D) Celestial Pearl Danio (Danio margaritatus)
A) Males and females have different appearances B) They can change their sex C) They reproduce asexually D) They only reproduce in groups
A) Females have brighter colors B) Males are always larger C) Females are usually rounder D) Males have longer fins
A) Blue B) Purple C) Silver D) Gold
A) Ruby Barb B) Diamond Guppy C) Galaxy Rasbora D) Emerald Tetra
A) Livebearers B) Egg scatterers C) Nest builders D) Mouthbrooders
A) 5 gallons B) 2 gallons C) 10 gallons D) 50 gallons
A) Very strong current B) Moderate current C) No current D) Stagnant water
A) Glowlight Danio (Danio choprai) B) Giant Danio (Devario aequipinnulus) C) Zebra Danio (Danio rerio) D) Spotted Danio (Danio nigrofasciatus)
A) Danio rerio B) Danio choprai C) Danio margaritatus D) Danio albolineatus
A) Caudal fin B) Dorsal fin C) Anal fin D) Pectoral fin
A) Clamped fins B) Increased activity C) Brighter colors D) Increased appetite
A) Aggressively defending a territory B) Laying eggs C) Hiding amongst plants D) Swimming together in a loose group
A) Building bubble nests B) Hunting larger fish C) Playing in the filter current D) Burying themselves in the substrate
A) Small tetras B) Peaceful rasboras C) Aggressive, fin-nipping species D) Corydoras catfish
A) Clear water and stable parameters B) Cloudy water C) High ammonia levels D) A strong fishy odor
A) Monthly B) Only when the water is visibly dirty C) Every six months D) Weekly or bi-weekly
A) 10+ years B) 6-8 years C) 1-2 years D) 3-5 years
A) Small flakes or pellets B) Vegetable matter only C) Live goldfish D) Large sinking pellets
A) Zebra Danio (Danio rerio) B) Giant Danio (Devario aequipinnulus) C) Spotted Danio (Danio nigrofasciatus) D) Pearl Danio (Danio albolineatus) |