Tristan wrote:
I have always been told never to feed freshwater fish..sal****er
foods, and never to feed sal****er fish freshwater foods...be it
frozen or prepared items. Was always told its to keep from
introducing foreign critters into the environemnt that the fish are
not used to.

Actually I always heard it the other way round - feed SW to FW and FW to
SW....because the pathogens for SW cannot survive in FW and vice versa...



So whats the difference when it comes to feeding brine shrimp or
krill or any other number of frozen foods that say Fresh or salt water
fish on them. I often acclimate mollys or guppies to SW and feed
varous SW fish live foods. Last I read sw micro organisms do not
survive in FW anbd visa versa, so I am having a hard time reasoning
with the no to feed sw to fw etc etc.

See above....looks like we have heard the same thing....

Gill