I once had a tank crash, too--literally. Long time ago (didn't have tendency to think a whole back then ) I had a twenty gallon on an end table with legs. I tried to pull the end table forward by the two front legs, and they broke off--the aquarium crashed down and broke. I was able to save most of the fish, but I got to some too late, and I think there were two guppies that I never did find. My cats may have had something to do with that.