The live rocks in the aquarium are based on the size of the aquarium. It is essential to use the different types of rocks in the aquarium. Based on the size of the aquarium the you should install the rock as per defined aquarium size.
I think rocks can be installed as per the space in the aquarium. It is essential to select the rock colors based on the size of the aquarium. It is essential to manage the norms of the aquarium based on the size.
You must have to install smooth rocks along with the corals. It is necessary to get the proper advantage of the stone based on the size of the aquarium.