youre set with lighting.
if you just want to cover the bare rocks, but not really change the shape; more mushrooms and more zoas!!!
if you want things growing out of the rocks and changing the shape and height of things, you can pretty much add anything else.
the easiest being softies, LPS; acans, torches etc. then more advanced, sps will encrust onto the rocks and grow out.
a 120 is a great working size, and will look awesome once everything has grown in!
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