PisciDex Species Profile
Common Goldfish
Hardy long-bodied goldfish with heavy waste output and large adult size, better suited to large aquariums or ponds than bowls.
Carassius auratus
Cyprinidae | Domestic | Domesticated from East Asian carp lineages
Core Requirements
Tank Size
75 gallons minimum
Adult Size
12 inches
Group Size
Solo
Bioload
8/10
Water Parameters
Temperature
60-75 F
pH
7-8.4
Plant Safe
No
Invert Safe
No
Data Confidence
high
Temperature note: Recommended and tolerated temperature ranges currently match the primary care profile.
Care Warnings
- Not suitable for bowls or small warm community tanks; high bioload and cool-water needs.
Behavior & Husbandry
Temperament
Peaceful
Aggression
1/10
Diet
Omnivore
Difficulty
Easy
Lifespan
15 years
Breeding
Intermediate
Schooling
No
Compatibility Tags
Large TankPeacefulMid WaterBeginner FriendlyHardwater
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Species Compatibility
Database-driven compatibility notes for planning community aquariums.