Originally Posted by
Hart24601
I use RO/DI for all my FW fish. Here in Iowa if you are not using at least RO you better not be doing waterchanges much with tap water or eventually your fish will die off. I have seen it so many times locally, mystery losses after W/C despite using conditioners. There is so much ag run off and a heavy rain during planting really messes with the water. They add lime to burn off organics, but who knows what all makes it past, they don't test for everything.
Anywho, I get years out of my membranes, I currently use the bulk reef supply watersaver dual membrane system and have been happy with it the past 3 years, I used various systems before that but not really a "kit".