Hello, looking for some help. I received my ATI ICP test back and it showed that my RODI water had high Silicon 44.40 ug/l versus a reference of 0. My handheld TDS shows 0. The sample was taken from a holding container that is a "food safe" dog food container. Any idea how this could happen and its effect on coral? I am having some issues with my SPS lately. The odd thing is my tanks Silicon is 74.72 ug/l versus the reference of 109.7 ug/l, under the reference.