It has been several weeks and authorities are still not sure exactly what or who killed the fish.
Local media brought the unusual case to the attention of leaders and sparked a strong public reaction.
It will make the Vietnamese market more transparent and competitive, benefiting consumers, they say.
It wants visa-free stay for nationals of France, Germany, Italy, Spain, and the UK to be doubled to 30 days.
There are still around 1,200 bears being caged at bile farms in Vietnam, a report says.
Photojournalist Nguyen Dat shares vivid pictures taken around Saigon on April 30, 1975.