So let's see where am I, I bought the eggcrate and I've pieced together and silicones all the eggcrate together how I want. It's a perfect fit for the tank BUT so perfect that I can't get the eggcrate in without removing the trim. So I'm going to have to carefully trim it somehow.

Also I'm going to go pickup the weedblocker tomorrow, looked all over today and since it's winter most places no longer carry it but I found one. After that I just have to find good topsoil (again it's winter)

Once I'm ready to assemble how do I attach the weedblocker to the eggcrate? I'm planning on just siliconing it but figured is ask first...I'll post. Pic of the structure in the morning