You can keep them together this way.
I had a terrible time finding the proper base for my dividers... could not find the report covers.
So, I went to Home Depot and got this:
I have 1 sheet of mesh but it will fit 2 is you want less visibility.
I just cut it to size, glued it with aquarium silicone and placed the mesh I had already bought. Very simple and CHEAP!
My mesh is black and the endcap only came in white so I used some black electrical tape to cover the endcap from the outside of the tank... very clean look!
I got the mesh at Hobby Lobby for less than a dollar per sheet, the silicone will be the most expensive but it goes a long way.