> I was really shocked that after 5 days there was a dramatic diff in
> the samples. The dark dye water sample thrived as did the clear water
> while the tannic acid samples ALL showed clear degradation of the
> Hydrilla in increasing amounts with concentration. As Tannic acid is
> a natural component of a lot of water with cypress trees I called the
> FL Dept of Enviro Protection to tell them of her study and its
> finding. I was told "possesion of hydrilla is a crime in Florida" and
> no interest in a natural solution to a real problem. The only
> interest I found was with the NW FL Water Management District Office
> where they told me they had considered doing such a study but could
> not get the funding. I am trying to figure a way to publish her
> results without saying we actually had hydrilla in our possesion.