Is there such thing as a SG Shock?

[midgetwaiter]

Originally Posted by Seek828

I see.
Just to make sure here. So you mean when I get a new fish I can really just. more or less, dump it right into a QT with a SG of around 1.010-1.013, which is pretty much hyposlainity? But when I move it to the display the process of going to higher SG has to be slow?
I read about going down is okay but going up is troublesome because it causes dehydration. Is that why?

Yep you really can just drop them in to a lower salinity like that, doesn't seem to bother them. I don't really know why going up is more problematic, it's more of an immediate shock than just dehydration. I've seen it and it's bad.