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Google liverock aquascaping, as long as the rock is stable you can do what you want, lagoon, slope, wall, caves, arches, ect. Sorry I don't have pictures. Have fun with it!
I've seen some beautiful tanks with an ayatollah style layout, and a friend of mine made a twin peaks style layout with a swimming ridge down the middle, very interesting to watch.
I tried lots of different things...just try and keep the fish happy,i guess.. . I try and make a lot of caves and hiding spots ,,but keep it open in the front of the tank for swimming room...,,and have fun with it,,don't get frustrated with it