Need some help. I have a few questions about basic or advanced reef chemistry. I have begun keeping some acros and for the first 2 weeks they looked great. They were coloring up and polyps were extended. Two weeks ago water chemistry 2/27 Cal 465 Alk 10.5 Mag 1460 Phos .5 Nit 5.0-7 Water chemistry was slowly improving so I decided to try the acros. After noticing my acros tips turning white and polyps not extending I did some more tests.... 3/9 Cal 450 Alk 9.2 Mag 1280 Phos 0-.25 Nit 0-2.5 That's when I decided to stop the dosing of part A and B because I thought the numbers where too high for only 2 acros and that possibly as my phos and nit we're decreasing maybe I needed to decrease my Cal and Alk. Can anyone help me understand the relationship between Alk, Cal, Phos and Nit. Is my understanding correct..... That as the Phos and Nit decrease to almost undetectable so should my Alk and Cal. And if so what is the best way to decrease them.