Reverse Osmosis

Reverse osmosis (RO) is the process of removing large molecules and impurities through pressure, which purifies the water. RO units are used in many things, from simple tap water purifiers, to massive power plant cooling systems.

Osmosis is a natural process. When liquids of different concentrations are separated by a membrane, the fluid has a natural tendency to equalize. Reverse osmosis is the process of forcing a fluid through a membrane, separating the fluid from the particles too large to pass.

In aquariums, RO systems are used to provide clean water for the tank’s inahbitants. Tap water leaves behind minerals and chlorine, which – even after chemical treatment – can be of little benefit to your tank life. Smooth-skinned (non-scaly) fish, as well as crustaceans and corals are very sensitive to elements in the water.  Also, algae loves to snack on the minerals and other compounds (phosphates, nitrates) normally found in tapwater.  You can reduce your costs and maintenance by using reverse osmosis water with every water change.

RO systems can be purchased for your home, or you can find RO water at most grocery stores, and specialty water retailers.  Crystal Clear Aquariums offers multi-stage deionized RO water to the public at a very low price.

If you have any questions, just email us ( or call the store at 406-585-1151. Remember to be patient, don’t put fish in your tank until it’s ready,, and stick to your water change schedule. It’s that easy to have a healthy, natural aquarium.

Leave a Reply