Hi, I'm living in a 51/2 appartment and I have a 90g with on the other side of the tank wall a 45g sump and a 33g fuge and also my hotwater tank, my floot are all wood. The appartment under mine has the same divisions so my tank his supported by the wall under.... All seems fine for now
Ps. I know 90g isn't a big tank but if you include the sump,fuge and hotwater tank it's alot of water in the same place
