Reverse Osmosis Deionization (RODI) is a water filtration system that is commonly used in marine aquariums to remove impurities from tap water and provide a clean source of water for the aquarium. RODI systems work by passing tap water through a series of filters that remove impurities such as chlorine, chloramines, heavy metals, and other contaminants. The water is then passed through a reverse osmosis membrane that removes dissolved solids and other impurities. Finally, the water is passed through a deionization resin that removes any remaining impurities and produces ultra-pure water.
Using RODI water in a marine aquarium is important because it helps maintain optimal water quality and prevents the buildup of harmful contaminants in the aquarium. RODI water is free from contaminants, unwanted algae, and parasites. It does not harm the environment and is free of harmful and invasive organisms such as valonia, aiptasia, dinoflagellate, bryopsis, AEFW, and undesirable crabs.
There are many RODI systems available on the market. Some popular options include LiquaGen 5-Stage Reverse Osmosis and Deionization,