I posted this photo on another thread discussing fishless cycling so apologies if you've already seen it.
This is my rockscape. In the photo is doesn't look to be much rock in there but this tank is 150x75x75cm (59x29.5x29.5 inches, 850l or 220 us gallons) and the tallest rocks are about half the height of the tank, I daren't go any higher than that as I need to be able to sleep at night!
There is plenty of free space and I was contemplating a mix of mbuna and peacocks but have settled for mbuna only with a mixed group of acei itungi and lawala to hopefully fill some of that space. Fish should be coming in a fortnight or so.
Hope you like it.