Quote:
Originally Posted by ElGuappo
What is the reason a saltwater fish will not survive in FW.????
Something to do with the gills?
My buddy just asked me after seeing my tank and i cant give a good answer.
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They Can...Salmon
Seriously though
Salt...
Osmosis is a term used to describe the physical property exhibited when a difference in concentration exists on either side of a semipermeable membrane. This is stuff we learned in high school but forgot. Water will flow through the membrane in the direction that will try to equalize the differences in concentration. So, water will pass through the membrane, moving from the side of low concentration to the side with the higher concentration. This is the same mechanism that is working in your fish question. The salt water fish will die because too much water is entering it's body. The fresh water fish will loose water when placed in salt water.
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