[Beverly]

Danny,

Just going to ask the usual questions....

Are you using tap or RO water? Have you tested your NSW for alk, Ca, Mg, SG, pH, temp before adding it to the tank? What are alk, Ca, Mg, SG, pH, temp in this tank right now? How often do you test for and adjust alk, Ca, Mg, SG, pH?

Also, I recently discovered that my Salifert Mg kit was out of whack. I kept getting test results that showed my tank was continually low Mg levels, so I kept adding what the Reef Chemistry Calculator told me to add. Then I got a new test kit. Dang, if Mg in all my tanks measured 1500+ ppm. Needless to say, it's a good idea to make sure tops on liquid solutions should be on tight, and make sure test kits are not outdated before relying on the test results.