Ok the 150 gallon tank I am getting with be set up on a outside wall in the family room. There is a unfinished basement below. The joists will be running parallel to the tank/cabinet stand. It looks like the tank will be sitting on 2 joists . is this going to be safe or am i going to have issues? Right now with my 55 that is sitting in the same spot there is not sagging what so ever. Just need some input. And there is the only place i can set it up!