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Saltwater Fish have the same problem in reverse. For saltwater fish, the sea water contains a much higher concentration than what is in their bodies. As a result, salt leaks in and the fish has to use its kidneys and ion pumps to excrete extra salt.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoSalt water fish need salt water, fresh water fish need fresh water. Humans need air. Its just the environment that it grows in.
Wiki User
∙ 15y agoThey need salt to surrive because it is their habitat and they live off of it?
Wiki User
∙ 15y agothe fish live in the sea because they have gills, and they cannt live out of water ,and they cann't live in freash water.
Wiki User
∙ 12y agobecause the sea is large and it is so wide and plenty of fishes eggs and some will come to rivers from ocean like salmon fish
Wiki User
∙ 13y agoAll fishes need to live underwater because they cannot breathe without it. More details about why fishes live underwater remains unanswered.
Wiki User
∙ 13y agoit has to do with the levels of salt inside of them compared to the level of salt they live in
Wiki User
∙ 13y agonot all fish live in salt water some live in fresh water that is just how its meant to be
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Can Salt-fish water swim backwards?
they can
What water does a clown fish swim in salt or fresh?
They live in salt water They live in salt water
Can a puffer fish move?
They swim and are popular in salt water aquariums.
Can sea fish swim in rivers?
No they can't because they need to have salt in the water. So no sea fish cannot swim in the river.
Is the butterfly fish a saltwater fish?
The butter fly fish does not like salt water... But it likes to swim in coke and sprite water!
What kind of fish swims backwards?
it depends... is it a salt water or fresh water type of fish. if it is a fresh water kind there is something wrong with it but if it is a salt water kind apparently some have been found to swim backwards for no apparent reason.
What can not swim?
I guess a dead fish would not swim too well and neither would a shark that has been prey to shark fin hunters. I do not know of any living normal fish that can not swim. Fish can rest for a few seconds and not swim than but if a fish stops swimming than its vital organs stop working.Exactly.The dead fish can not swim...
Did the nothosaurus swim in fresh water or salt water?
salt water
Is haddock a fresh water or salt water fish?
It is a marine fish found in the atlantic ocean.
How do you clean a LIVE fish?
clean the tank and while you are doing that put it in a small bowl but with enough room to swim with fresh water but make sure that if it is a fresh water its in fresh water if it is salt water it is in salt water
Do pirnahas swim in salt water or fresh waater?
salt water
Do muskrat swim in salt water?
This animal is not adaptted to salt water.
