75gal & 125gal -FLOORING - NEED ADVICE

I currently have two tanks (125gal and 75gal), which are currently located in the basement of a house. I plan to move in July into an apartment complex. I haven't signed the lease yet. The apartment is on the ground floor, but it's on a crawl space. The apartment is situated on the end. The complex is a total of of two floors. There is a brick wall to the left and the right wall shares the wall for the staircase going upstairs to the apartment above.

L x W x H
75 Gallon: 48 1/2 x 18 1/2 x 21 3/8; 140 (just glass); 850 (glass and water)
125 Gallon: 72 1/2 x 18 1/2 x 23 3/8; 206 (just glass); 1400 (glass and water)

If I put the heavier tank on the brick wall and the 75gal tank on the middle wall, would that be safe being that it's on a crawl space and I'm unable to add any additional protection under the apartment because it's an apartment complex???? Please respond. I need to make a decision on this apartment by Saturday this week. Thank you.

You should probably get permission from the landlord, but I've had aquariums in houses with crawl spaces. If the floor will hold heavy major appliances, it will probably hold an aquarium with no problem. In fact, most houses in the northern part of the US have basements, etc. Here in the desert southwest, most houses are built on concrete slabs, so heavy stuff on the floor is not an issue. In earthquake prone places like California, some houses are supported by steel beams rather than wooden ones.

Of course, the bottom line is the landlord's opinion, and if he/she doesn't permit large aquariums, maybe you could put them in storage and get several smaller aquariums. I like a 37 tall or a 25 tall for angelfish, and 20 gallon tanks are fine for most live bearing fish. If you get much below 15 gallons, you'll have to be very careful about maintenance chores, because small water volumes can change very quickly if they experience a problem.

Good luck, and please let us know what you decide.