I live in Denmark and just purchased 2 butterfly cichlids and I was wondering what RO water is?
RO is an abbreviation for Reverse Osmosis. Reverse Osmosis filters will take tap water and remove all the pollutants and chemicals that may be in the water either from natural sources or as a result of modern water treatment methods. Top • I live in the country and have a well with hard water. We have a water softener plus a reverse osmosis (RO) system for drinking water. The output of the RO system is pretty minimal. I have a 20 gal. aquarium (freshwater) which we started with distilled water. Should I get a larger R/O system or keep using distilled water? That is some very hard well water Ken. We sympathize with you and think your efforts are quite admirable. You’re doing a great job with the equipment you have. As you have determined already, most “home” drinking water RO systems are not adequate for aquarium use. Those smaller units are designed to make small quantities of drinking water, not large volumes of ultra-pure water for an aquarium. You are taxing the RO system by making
