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isn't it true that S.W "can" go into F.W, but not the other way around"sometimes" only b/c stripe bass, snook, trapoon etc. live in S.W but can be found in F.W

I think it mainly depends on the fish and to what it can and will adapt to...But, I don't think a "true" sw can go to straight fw, or vice-versa...I think it would become more brackish, or am I wrong? heidi

teach me to come to the darkside

"I've got a great ambition to die of exhaustion rather than boredom." Thomas Carlyle

Do you mean saltwater "tropicals" as compared to "sport" fish?

Many saltwater fish can tolerate freshwater "dips" to get rid of parasites, but only for a couple of minutes.

Certain brackish fish can be weaned either way, freshwater or saltwater. Take mollies for example.

Could you elaborate on your question a little bit more? I'm sorta confused.



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If genies were real and wishes came true, I’d rub the bottle and be holding you,
I’d close my eyes, wish upon a star, open my eyes, and there you are…
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-Formerly known as the Ferretfish

Some fish, like American eels and Atlantic and Pacific salmon can move between fresh and salt water, often for spawning purposes. These are exceptions though, as most fish can't tolerate the huge salinity change between fresh and salt water. Their bodies are usually wired for the osmotic pressure of their enviroment, which means that they either take in water (salt), or expel as much as they can (fresh).

I also don't know what you're trying to ask. Yeah, it is true that some fish freely move between salt and fresh water. However, you can't stick the vast majority of fw fish in sw tanks, or vice versa. Is that what you wanted to know?

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And when he gets to Heaven, to Saint Peter he will tell: "One more Marine reporting, Sir! I've served my time in Hell."

yep sirbooks, o.k i got it now.