Oh I see, it has nothing to do with anything relative to this discussion, or anything else regarding keeping fish and using water conditioners. I already gave you the answer you need to give more accurate info next time someone asks these types of questions. My advice would be to spend more time absorbing that info & less time asking questions that have nothing to do with a fish system so in the future your time (and mine) will be better spent.question I posed had nothing to do with a fish system.