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- Apr 12, 2016
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True, but i have a home water purifying system, it has ro, carbon, uv, uf and tds controller. However tds controller controlls tds to max 20. My tap water tds is 198.Ok what I follow is his tank was reading 3dKH so he began to use reef builder to correct it. For a while things where reading right but then he added too much and got a reading of 25. I'm am not sure what kind of water he has as a home purification system can be anything from rodi to just run through carbon. It may also have water softeners ect. attached. The fact that water changes lead to algea blooms tells me that it isn't rodi though or likely not even ro.