from the info stated it appears the microbial group selected does not have the genetic code for reducing these compounds into their elemental/nutritional form. Also any aquatic sickness is possibly due to the excessive metals not being chelated before discharging into any natural environment.  Both of these are an inexpensive natural microbial function.  You may want to read up on Chelation of mine tailings.  Need help, Just ask.

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from the info stated it appears the microbial group selected does not have the genetic code for reducing these compounds into their elemental/nutritional form. Also any aquatic sickness is possibly due to the excessive metals not being chelated before discharging into any natural environment.  Both of these are an inexpensive natural microbial function.  You may want to read up on Chelation of mine tailings.  Need help, Just ask.