Creating back wall in Arcylic tank

[Arrowsong]

Morning Guys, Reefer from the Netherlands here.

After some glass tanks im moving to a acrylic tank and due to,
not wanting to have to scrape the back wall to often,
secondly wanting more real estate to place sps and other corals ,

i am looking for ways to cover the back wall and 1 side wall of the tank with some rock, ceramics ,etc etc

I can find some ceramic inserts, would be very nice but major expensive,
have an idea to glue some flat rock together and stick that to the wall. but that would not look the sexiest the first couple months.

What ideas would you all have, and the main question off-course ,how to stick it to the wall? just use silicon? super glue? what is the preferred method of getting it to stick without falling after some time.

the tank is a bit over 300 gallon.

Thanks in advance

 

[TangerineSpeedo]

People have had luck with just crazy glue or epoxy or just nature doing its thing. I just have stuff growing on my back wall because I don't clean it. Sometimes it can become a problem.