Corals are marine invertebrates that form the foundation of reef aquariums, creating natural structures and vibrant underwater landscapes. They require stable saltwater conditions, strong water flow, and high-quality lighting to support growth and coloration.

Successful coral keeping depends on maintaining consistent salinity, calcium, alkalinity, and magnesium levels. Different coral types—such as soft corals, LPS, and SPS—have varying care requirements and light demands.

Corals may also benefit from supplemental feeding depending on species. Proper placement, stable parameters, and careful acclimation are essential for long-term health and a thriving reef aquarium.