they tend to be ok, mine have fallen 4-5 feet and survived. it just depends how long they were out of the water
WOW^
What I do is I put duck tape around the back of the tank where the lids are (do it neat and unnoticeable) mine is display quality but I make it look good.
Just make sure there are lids..... and they are good fitting and etc.
I have a problem with my African Cichlids jummping out, so what I did is I made a huge wooden lid with 2 holes (plut a small piece of glass on that) and so I put the food through those holes, if that makes sense, looks great and its also in the living room, the family loves it.
So my suggestion, have good lids that wont break or allow your Oscar and othher fish to jump out.
Or, easy enough, make a lid up out of wood, atleast if you do that you know you made it and know is safe.