In children, symptoms may depend on age: In infants younger than 1 month of age, symptoms may include having little or no energy (lethargy), feeding poorly, grunting, or having a fever. In children, symptoms of pneumonia are often the same as in adults. Your doctor will look for signs such as cough and a breathing rate over 60 breaths a minute.
Tap water should sit for at least an hour before adding any fish to the bowl. The water must be room temperature.
1 This will give the fish time to start getting used to the water in the quarantine tank.  After 15-20 minutes, open the bag and use a clean cup to scoop an equal amount of water from the tank into the plastic bag. There should be 50% tank water and 50% pet store water in the bag.