Adding live rock to a dry rock setup

[Pseudoskill]

My tank is roughly 3 months old, started using only Caribsea rock and sand. I'm debating adding some "rubble" around the aquascape using live rock from my LFS. Is there even a benefit from only using a small amount of live rock? I imagine I'd only be adding 1-2 lbs of rock, if that. I'd then of course give it time to settle and whatnot. I originally wanted to avoid the headache of using live rock as far as hitch hikers go, but dry rock presents with its own set of problems. Thanks!

 

[CK00020]

Even a small amount of live rock will give you coralline algae and a bit more biodiversity.