Will somebody please invent a water analyser that will calculate the calcium, Alk, Mg, Fe, I , No3 , Phosphate and other levels that we aquarist need to know. I am tired of running all the testing for the different elements that is necessary for a cool tank. If we have blood sample analysers I am sure that somebody can invent a all in one analyser with a reasonable cost. Request the scientist types amongst us to get working ASAP. Maybe the inventor will also get a. Nobel for Reefkeeping..