Live rock is a type of natural rock that is used in marine aquariums. It is typically made up of coral skeletons and is home to various marine organisms, such as bacteria, algae, and invertebrates. This rock helps to create a stable environment for fish and other aquatic life by providing essential nutrients and promoting biological filtration. When added to an aquarium, live rock can enhance the aesthetic appeal and contribute to the overall health of the ecosystem. It serves as a habitat for marine life and can help maintain water quality by breaking down waste products. Proper care and maintenance of live rock are crucial for a thriving aquarium.