I am adding about 30+ pounds of LR to a rockscape that already has ~30lbs of rock. The existing rock is well covered with coraline. I am wondering what will happen if I "intermix" all the rocks when I rebuild. Will the new rock catch up quickly? Or, will it always lag behind in algae growth? I would hate to end up with rockwork that looks "patchy" because of the combination...

I could keep the new rock to one side, and the old rock to another, I suppose? This will be my first tank changeover, so I have zero experience in this. Any thoughts?