Finally, I get the chance to build a new house (townhouse in my case) They are going to reinforce the floor beneath. My question, is what is the best way to go about this. I am looking to keep as much as a 180 gallon tank. Currently it will be on the ground floor but it has a crawl space underneath. Also it will have hardwood flooring which should be more strenght. Current flooring looks to be at least 3/4 inch thick. The beams are 2X10's that run perpindicular to the wall it is on. (they are running the correct way) The 2X10's rest on a cement footer in the middle of the house. What suggestions would you give the contractor???