Other / Not Specified, Other Business Fire sprinklers put out fire at aquarium (Dubuque, IA) December 17, 2013 viking210 Fire crews were alerted to a fire at the National Mississippi River Museum and Aquarium on Saturday morning. The fire, which had started on the second floor of the aquarium in a tortoise enclosure, was eliminated by the building’s fire sprinkler by the time the crews arrived. The cause of the fire is under investigation, but no animals or people were injured in the incident.