The swiss are legislating animal rights:
From guinea-pigs to budgerigars, any animal classified as a “social species” will be a victim of abuse if it does not cohabit, or at least have contact, with others of its own kind.
The new regulation stipulates that aquariums for pet fish should not be transparent on all sides and that owners must make sure that the natural cycle of day and night is maintained in terms of light.
Anglers will also be required to complete a course on catching fish humanely, with the Government citing studies indicating that fish can suffer too.
New Swiss law protects rights of 'social' animals - Times Online