does fish drink water ??

Answer 1

Freshwater fish absorb most of the water they need through their skin via osmosis (is the net movement of water through a selective permeable membrane from a region of low solute potential to a region of high solute potential), not through their gills. The gills are for respiration.
Saltwater fish actually drink the water the live in, as the salt in the water is constantly pulling H2O from their bodies in a reverse respiration, this is why some fish such as catfish are sensitive to salt in the water, but this is also why some fresh water fish are helped by salt to generate a mucous slime coat on their skin which is necessary for disease prevention. Proper electrolytes, magnesium and other elements are important for slime coat generation.

Another note, because most freshwater fish cannot drink their surrounding water (Salmon and others are exceptions), when you place these freshwater fish in saltwater, they actually dehydrate.

This is from my article about proper osmotic function .

Please read this article for MUCH more information about this actually important subject:
http://aquarium-answers.blogspot.com/2006/12/how-do-fish-drink.html

EDIT:

The link I provided has much more information about this subject including how the process of osmoregulation works such as hyperosmotic and hypoosmotic function.
There are also several outside links for further information

Answer 2

fish drink water.the water seeps into tiny holes in their skin.
without fully explaining Osmosis, A salt water fish is drinking water all the time but a fresh water fish isn't although it may swallow some when it opens its mouth.

Answer 3

Osmosis is the process by which fish take in or expel water and salt,depending on whether they are fresh water or salt water fish.

Answer 4

Not all animals drink water, at least directly. If you mean do fish drink the water they swim in the answer is (normally) "No".

Fish and Aquatic Mammals get the moistuire they need from the food they eat.

In fact if you give water to a dolphin, it will drink it, but it won't eat solid food for days and may even die.

Answer 5

Fish have kidneys,so they process water in some way. Probably not the same way for all species.

Answer 6

A fish breathes by absorbing oxygen from water as it passes over it's gills (doesn't it??), this might look like it's drinking but really it isn't.

Answer 7

The question should be "do fish drink water?"

Yes. All animals drink water. This is the same as a fish asking, if it could, do we breathe air.

Answer 8

They drink water.

Answer 9

Lee pretty much answered the best so just to add more info to what he already said here is an article that explains osmoregulation to give you a better understanding of what he was talking about.
http://www2.hawaii.edu/~delbeek/delb11.html

Answer 10

Saltwater fish do while freshwater fish do not need to. This has to do with hypertonic environment versus hypotonic environment.