I will have many tunnels and such. I did have live rock but had a big problem with coraline on the front and as you probably know it is difficult to clean plexi with out scratching. I had the aquarium made for me so it has a blue backgroung and a black floor, looks pretty good. I had Poca Poca substrata (which is almost impossible to get) in my glass tank but scared to put in my plex. There is a great aquarium place in Seattle that has informed me I can order any fish in anypart of the world. And they promise it will be hand netted.