Exodus Posted March 16, 2009 Share Posted March 16, 2009 Hey I know it's a bit off the topic but I have always just used tap for my freshwater tank, Since I recently got an RO/DI unit for my salt I was wondering If I should be using that water in the freshwater tank, I think I recall hearing something about how it shouldn't be used (scratch) but just wanted to see what others had to say. Thanx Nick Quote Link to comment Share on other sites More sharing options...
JManrow Posted March 16, 2009 Share Posted March 16, 2009 RO/DI water is extremely pure, and many of the trace elements and electrolytes required by freshwater fish have been removed, along with the contaminants. Nevertheless, RO/DI water is used by many freshwater aquarists, especially those keeping soft water fish, such as Discus. The minerals can be replaced using a product such as Kent RO Right. http://www.kentmarine.com/products/kent-ro-right.htm I have wondered though, if the same thing could be accomplished using small additions of the synthetic seawater mixes that we use in our marine aquariums, to remineralize RO/DI water. Quote Link to comment Share on other sites More sharing options...
TAD Posted April 6, 2009 Share Posted April 6, 2009 I think if you just RO your water it would be fine for your fresh water setup. Quote Link to comment Share on other sites More sharing options...
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