Because of the freshwater only type of regent cyanide test that we had available to us, we let presumably contaminated fish flesh sit in a RO freshwater bath in a sealed container, I believe there was some blending of fish flesh as well, (I think my papers got put in the garbage when I moved from where I lived at the time of said test) when we tested the sample we produced a reading that confirmed trace cyanide(I dont remember the concentration)( also our test method was very primitave and unreliable but it did register a reading which led us to believe there must be cyanide present because when testing a regular RO water sample we produced no readings, I would call our method very inaccurate as to the concentration, but accurate to determine the presence of cyanide in our case) because I had 6 of these small adult angels shipped I had extras in the freezer to send back to the wholesaler who had them tested in a proper lab and confirmed our findings with a much more extensive test(all I know is that they said it cost them a few hundred dollars to get the tests done), they were mad and knew exactly what collector they came from(thats what they told me) they informed me that they would immediatly cease dealings with said collector and would inform others in the industry, I never had a problem after that...