I like the way the set up looks now, but with the fish getting larger I feel like I am taking away a lot of space especially since they are open water swimmers. I do have a lot of non flat rocks that I could put in. I know the set up is personal preference but what are everyones thoughts? I feel I am taking away from the size of the 180 by having the entire back of the tank filled 3/4 high with rocks. Here are some pics. There is also a video with a link in my Signature.