Collection of wild coral reef fish for the aquarium trade raises serious welfare and conservation concerns, particularly where cyanide fishing persists.
Wild-caught aquarium fish endure capture stress, crowded holding, chemical exposure, and serial transport. Mortality between reef and retail can exceed 50 percent in some supply chains. Fish that survive to a home aquarium may have invisible internal damage from cyanide exposure. The welfare argument for captive breeding is strong: tank-bred fish are adapted to captive conditions, free from capture trauma, and avoid contributing to reef depletion. Supporting certified sustainable collection and prioritising captive-bred species reduces welfare harm throughout the trade.