Do Saltwater Fish Pee? Discover Their Hydration Secrets and Physiology
Saltwater fish do pee, but they produce less urine than freshwater fish. They drink seawater to stay hydrated. Their kidneys excrete concentrated urine, which contains urea and less salt than seawater. This process helps them manage their body’s water balance and remove excess salt effectively. Saltwater fish produce small amounts of concentrated urine. This helps … Read more



