Marine salt, also known as sea salt, is a crucial element in creating a balanced ecosystem in your aquarium. It contains a mix of essential minerals, such as calcium, magnesium, and potassium, that are necessary for the growth and development of reef and tropical fish.

Iron is not only a nutrient for the single-cell zooxanthellae produced by corals, but also a nutrient for the brightly colored bodies of sea fish and invertebrates.

Coral coloration is influenced by many factors, including lighting, water quality, nutrition, and overall aquarium conditions. Understanding the possible causes is the first step toward improving coral health.