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RO/DI Systems

An RO DI water system, reverse osmosis deionized water filter, creates practically pure water for a saltwater fish tank water change and top off.

What is reverse osmosis? A reverse osmosis machine takes purifies pressurized tap water through a multi-stage process. The prefilters, usually a sediment and carbon cartridge, remove large particles and some toxins. The reverse osmosis membrane removes most impurities, then the DI resin cartridge makes it a practically pure water filter.

An RO/DI system may include extra filter stages, a water purity meter, or a booster pump for added benefit.

We recommend an RO/DI water system for a reef tank. Using tap water introduces toxins like chlorine and chloramine, as well as waste that feeds algae. An RO water system with a DI filter ensures only water is going in your saltwater aquarium. Note that removing chloramine from water for fish requires a special chloramine carbon filter.

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