Tropical Fish Welfare in the Aquarium Trade

The ornamental fish trade moves hundreds of millions of wild-caught and captive-bred tropical fish annually, with significant welfare consequences along the supply chain.

Key Facts

An estimated 1.5-2 billion ornamental fish are traded globally each year
Wild-caught marine fish experience 80% mortality between reef and retail aquarium in some studies
Cyanide fishing — using sodium cyanide to stun reef fish for collection — is widespread and damaging
Bettas (siamese fighting fish) are kept in containers smaller than 1 cup in many pet stores
Many tropical fish die within weeks of purchase due to poor water quality and inadequate tank conditions

Welfare Considerations

The ornamental fish trade causes enormous welfare harm across the supply chain. Wild-caught fish experience severe stress during capture, transport, and acclimation to captive conditions. Many do not survive. Pet store conditions are often inadequate. Home aquarists frequently underestimate the complexity and cost of maintaining appropriate water chemistry, temperature, and filtration. Fish are sentient animals whose capacity for pain and stress deserves serious consideration.

What You Can Do

Choose captive-bred fish over wild-caught species whenever possible
Research specific care requirements thoroughly before purchasing any fish
Provide appropriately sized, filtered, cycled aquariums before acquiring fish
Never release aquarium fish into natural waterways — it is ecologically harmful and illegal
Support certification schemes that verify sustainable, cyanide-free collection practices