Question: is epsom salt safe for goldfish?
Answer: Epsom Salt for Swim Bladder Disorder in Goldfish Swim bladder disorder can strike all freshwater fish, but goldfish are especially prone to develop it. ... If that doesn't help, increase the tank's water temperature to between 78 and 80 degrees Fahrenheit and add Epsom salt at a rate of 1/8 teaspoon per 5 gallons of water.