xsboost my low level po4 is 0 ppm on Elos and API, it was 0 on Hanna but that was tested many months ago. No3 is 3-5 ppm on Elos and API. I feed heavy daily Rods Foods, home made mix, zooplankton and AAs. My camera does wash out and over expose some of my lighter colored sps to the point where they look almost white. The pink birds nest the looks so pale has darken up since that pic was taken 3 weeks ago just for example. I feel my sps are 90% ther in color and growth. Please anyone feel free to give any advice and input to get me that extra 10%. Ca 440, Alk 9, mag 1300, no3 3-5 ppm, po4 .02-0 ppm Elos, API and Hanna tests. Vodka dose is low 3 drops daily on a 50 gallon total system volume. I run a modded NW110 skimmer that pulls out a good dark skim, GFO in reactor though I dont think it does much any more and a fuge. Been dosing vodka again for 4 weeks.