 Well here's the article
HI,
Here's the article, the part I din't care for was the difference in contamination in many of the synthetic salt mixes we pay good money for and the way it can accumilate in the water , if you change the water you just add more , and
many metals are difficult to remove with simple skimming why don't the make a bag material that helps dei-ionize or remove the more common things like copper, aluminum, and other heavy metal salts. As our tanks age they can accumilate quite a large amount of some of this material.. What We Put In The Water by Ronald L. Shimek, Ph.D. - Reefkeeping.com
Ok you water experts . 
Doug
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55 GAL OP, 37 GAL SEA HORSE TANK, 5 CLARKI,
2 MARRONS,2 SERPANT STAR,1 RANDALL PISTOL,NUMEROUS HERMITS,2 SKUNKS,
4 PEPERMINT,1 ANAEMONE, SEVERAL SOFT CORALS, 2 ADULT W/C SEA HORSES,8 CHROMIS.
1 B 1 LM BLEEMY,1 WATCHMAN,1 TRUE PERCULA, 2 TANGs, 1 gold angel 1 ROYAL BEAUTY. 1 20 GAL SUMP WITH 1skimmer, 1 fluidized sand filter,
REFORGIUM, AND DSB IN MAIN AND SUMP, right handed hermits. | 
