hey nautilus. i will be working until evening .. i tested on Wednesday with still around 575-600PPM calc. and 5PPM alk. will be testing around 6-7pm when i get home. pacific time. will post all test results of trate, amon. alk and cal. i think we figured it though. some polyps that looked closed so tight i could not even see the opening hole have now a very small pin hole on them to open. i think this is working.