It does apply to fish, but you mix salt into the water replacing the "stuff" in the water. Would you put a SW
fish into FW
? Of course not because the salinity content of the SW
fish is much higher than that of the FW
so that cells in his sensative tissues (gills, etc) will become damaged.
As far as not drinking DI
, it would be the exact opoosite of drinking SW
. Think about what happens when you drink too much SW
, you become dehydrated and die. Why does this happen, because the SW
in your stomache is at a much higher concentration than your body, so that you loose water as it leaves your system to dilute the SW
. The same goes for FW
cucumbers turning into SW
Lastly, I bet your DI
isn't as DI
as it could be. I am willing ot bet your filter doesn't remove everything. Also, true DI
is so pure that in most containers things will leech out into it raising the concentration of "stuff" making the water safer to drink.
Overal, drinking a glass of pure (abolutely nothing but H2O) DI
water probably won't kill you, but it is not nearly as good for you as a glass of wather with some things dissoved in it.