Best answer
Yes,fish do indeed drink water. Depending on where they live,however,the amount of water they consume can vary greatly. For example,fish that live in saltwater (i.e.,marine fish) generally have to drink a lot more than those that live in freshwater. This is because their bodies are constantly losing water due to osmosis.
People also ask
Do fish need to drink water?
Technically yes, fish do need to drink water. Because the natural fluids present in the fish makes it very difficult and dangerous for the fish to live. Thereby they have to allow water in their bodies either through osmosis or through their skin or gills.
Do fish drink or Pee?
Depending on where they live, fish either drink a lot or pee a lot. In the sea, a fish body is less salty than its surroundings, so it loses water across its skin and through its gills via osmosis. To stop themselves dehydrating, marine fish drink masses of seawater and produce a trickle of concentrated urine.
Do fish drink water through osmosis?
In this process the water is diffused from a higher to a lower concentration. Since fish do not technically drink water and the water diffuses through the body from surrounding water in osmosis, fish do not need to drink water like humans.
Why do saltwater fish drink water?
The second most important reason for saltwater fish to drink water is to avoid dehydration. Fish such as striped bass live in surrounding conditions where the surrounding salt concentration is more than the body concentration. This difference in concentration causes the movement of water from the fish body to surrounding by osmosis.