Hmmm...you know, I recall someone mentioning that they wouldn't recommend setting up a new tank with Oceanic salt, but rather to use it during water changes once the new tank had cycled...kind of "gradually" working your way up to a complete change over. I think (not sure) it had something to do with the combination of the new sand bed and Oceanic salt? Hopefully somebody else will chime in here. :unsure

Wendy