Diy stand help!!

[Areeflover]

I built a DIY stand, and brought it In and noticed the top plywood the tank sits on is incredibly bowed, like I can see under the tank what should I do ?

 

[jsker]

I built a DIY stand, and brought it In and noticed the top plywood the tank sits on is incredibly bowed, like I can see under the tank what should I do ?

If I may suggest to replace the top. The tank need a good solid flat surface to sit on.

A couple of picture would help out a bunch with advice.