My fish seem to be just hanging out in the corners and they look lke they are getting blown around sometimes..
i have three Koralia 3's.... is that too much in a 90g?
Right now i just have the fish, shrimp, snails, hermits, mushrooms and zoas...
It sounds like you may have too much flow. The Korailia3's are pretty powerful. Try turning 2 of the three off, redirect the remaining one, and see what happens to the fishes behavior.