Trace Elements II con't

The suggestion to remove Poly-Filter from tank when adding trace metal additives is made because we have no idea of the actual concentation of these supposed trace element solutions. These "trace metal solutions " contain no certified laboratory assay!
In addition, how are these trace element additive solutions stabilized ?
In making a standard solution containing metallic ions (trace elements) a mixture of hydrochloric and nitric acids are used to produce a pH below 1.0 pH . This prevents metals plating on the bottle 's side walls and bottom.
If you add a solution at 1.0 pH into synthetic seawater the metallic ions precipitate within minutes at the 8.30 pH levels. So we recommend remove Poly-Filter (r) during treatment. Is it really necessary ? NO !
The trace element solutions are basically " smoke and mirrors " being sold to hobbyists that are gullible! We actually recommend weekly water changes 5- 20 % for Invertebrates & Corals . The addition of Calcium & Magnesium via Kalkwasser is not a problem because Poly-Filter doesn't sorb Calcium , Magnesium, Strontium nor (alkalinity) Carbonates,Bicarbonates , Hydroxides. During our tapwater studies we found : that the addition of hydroxide anions + concentrations of trace elements above the normal trace element levels occurring in synthetic seawater results in rapid removal of the excess ions ------ producing the base level again. Much of this information is found in Paper " The Testing of PBM s Filter media and system under EPA Standards ---------- Toxicology laboratory " Published by Fresh Water and Marine Aquarium Magazine Sept. 97. (see our website : www.poly-bio-marine.com)
We have copies available for mailing. This paper is complicated and requires a scientific background for complete understanding. The actual study is available with multiple color highlighted information, reagent controls, full instrumentation data and color bar graphs for a twenty-five dollars (U.S.) + mailing fee.