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  1. As 2015 comes to a close...

    As you know if you follow my blog, I share the good with the bad. I hate admitting the bad, because people often put my up to higher standards and I already set my own standards quite high, but here's the scoop:

    The staghorn coral continues to STN slowly from the base up. And a couple of other spots of white appeared in about three more corals. I kept testing, trying to find the cause. When I tested nitrate this week, they were off the chart. Since that doesn't match what I measured ...
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  2. Decreasing salinity?

    We are having a problem with decreasing salinity. It has only happened over the last couple of weeks. We have an ATO system, and we change water once a week. We use the same salinity measurements every water change. What is causing this? The drop is going from 025 down to 020. I know you have to replace evaporated water with RO, but the salt should stay because it doesn't evaporate. Any suggestions?