Is this aquarium stand no good?

I picked up this used stand for my 180g tank off CL and I finally got the tank on the stand last night, and I'm seeing gaps between the tank and stand on the front corners, and a slight space along both sides of the tank. Is this stand going to cause my tank to fail? I really hope I did not just throw away the money I paid for this. Is there anything that can be done to make it safe if it is not? One pic is of the front left, you can see the space I am talking about on the left corner, and the other pic it's somewhat hard to see but you can see a line of "light" between the two. Thanks for any advice.

I figured they likely would go away with the water weight. I just want to make sure the settling won't stress the tank seems before I fill this thing because I live alone and it's not easy for me to find help moving this. Last thing I need is to come home from work to a leaky tank one day. It's supposed to be Mahogany. That left ledge appears to be slightly warped downward when looking from the side.

The tank is actually brand new. I wanted a new one so I know the seals are fresh and the tank will be good for years to come. This is my first larger sized tank so I will likely be keeping it running for a long time, provided the overall weight doesn't sag my living room floor too much over time. I did put some 4"x6"x8' support beams under the floor joists in my crawl space, its just not a professional job but I think it'll do. I have been planning this for months now and I am finally close. (I'll be adding a blackout curtain/shade to the window behind the tank)

Thanks guys. I just wanted to be sure before I filled it up. Would be much easier to just take care of the issue now rather then later.