What does it mean when your goldfish is turning reddish?

If the red is near or on its head, it is stressed. Stress leads to a weaker immune system, which means it is prone to getting sick. Try these tips to keep your fish calm:

* Move your fish to a quiet room in your house. * Do not disturb it. Check on it once in a while. Do not crowd around its tank. * Add aquarium salt to the tank. Follow the instructions to how much to put. Aquarium salt is like soda to fish, except it is healthy for them. It helps them reduce stress. If you are ever in Chelmsford, MA, go to Fins&Feathers Pet Store. They have the healthiest pets ever! Just tell them Erin sent you.