Companion Animals

Goldfish and Ornamental Fish Welfare

Goldfish are among the world most widely kept animals yet their welfare needs are poorly understood and frequently not met by typical bowl or tank conditions.

Key Facts

Goldfish can live 10-15 years in proper conditions but typically die much sooner in captivity
They produce significant ammonia and require well-filtered tanks of at least 75 liters
Common goldfish can grow to 30 cm and require pond-sized spaces to thrive
Bowl keeping is now prohibited or discouraged in several European countries
Goldfish have individual personalities, learning ability, and long-term memory

Welfare Considerations

The practice of keeping goldfish in small bowls causes chronic stress, ammonia toxicity, and stunted growth from physical compression rather than healthy development. Goldfish awareness of their environment and demonstrated learning ability argues for taking their welfare seriously. Proper filtration, adequate space, and compatible tank companions are minimum welfare requirements.

What You Can Do

Never keep goldfish in bowls — use properly filtered tanks of appropriate size
Research goldfish needs thoroughly before acquiring any fish
Avoid purchasing fish from stores keeping them in overcrowded or dirty conditions
Support legislation prohibiting goldfish bowls as is standard in Switzerland
Adopt rather than buy goldfish where possible from rescue or rehoming services