Budman, like I said, I rarely test for nitrate and with tons of fishes and heavy feedings it can get high. Mine was blood red on the Salifert test kit and the first sign to me was when a friend gave me a frag of the green slimer it did not take more than a couple of hours to died in front of my eyes like a forest fire, just lit up and turned white. like I said test often and know when to cut down on the Vodka, so far all corals are fine. Place some more SPS and got the colors right away. I have not gone below 10 as of today and the corals are much happier now. Just bought more corals this week and came out fine except the ones that did not make the trip when delivered. The only draw back now is constant testing until the nitrate is down to zero.
Then I would know the normal dosage.