Here is my 135 gallon african setup. All mbuna species and plenty of rock for them.
[video=youtube;h7dLzUZQ87Q]https://www.youtube.com/watch?v=h7dLzUZQ87Q[/video]
[video=youtube;h7dLzUZQ87Q]https://www.youtube.com/watch?v=h7dLzUZQ87Q[/video]