some info off the site:
Countless people around the globe have a deep appreciation for the world’s beautiful and, irreplaceable coral reefs and their denizens, yet coral reefs around the world are in crisis. Over 25% have already died or are severely damaged, and another 30% are seriously threatened from overfishing, destructive fishing practices, coastal development and global warming. Our deep connection with these magnificent realms provides both problems and opportunities.
Strong demand from the marine aquarium industry adds additional pressure to coral reefs causing declines in some wild populations and indirect damage to reef ecosystems. Over-harvesting and the use of toxic sodium cyanide to stun fish cause lasting damage to already dwindling coral reefs. Unacceptably large numbers of marine animals die during transport from around the world, putting even more pressure on wild populations as collectors struggle to meet surging demand. This problem alarms aquarium hobbyists and all people who care about Earth's coral reefs.
Between 1.5 and 2 million people worldwide keep marine aquariums, including 800,000 households in the United States alone.
1,471 species of fish are traded worldwide, with global trade ranging between 20 and 24 million individual fish annually.
As a result of cyanide use, mortality rates of captured fish are between 5% and 75% within hours of collection, with 20% to 50% of survivors dying soon thereafter. Of those that survive the collection process, another 30% on average die prior to export. Collection using cyanide results in an overall survival rate of less than 1 in 10 fish, at best, and often produces 100% mortality.
Mortality statistics from cyanide use does not take into account the high incidental loss of non-target wildlife and damage to the coral reef resulting from this misguided and illegal method of fish capture.
Fewer than 10% of marine ornamental aquarium species are currently captive-bred.