Nov 21, 2017 #21 Randy Holmes-Farley Reef Chemist View Badges Staff member Super Moderator Excellence Award Expert Contributor Article Contributor R2R Research My Tank Thread Joined Sep 5, 2014 Messages 67,347 Reaction score 63,689 Location Arlington, Massachusetts, United States Rating - 0% 0 0 0 Hans-Werner said: If Red Sea still uses cadmium for reduction of nitrate this has to be stated on the package. If there is no warning on the package they likely use zinc for nitrate reduction and it is zinc that forms the particles. Click to expand... Thanks.
Hans-Werner said: If Red Sea still uses cadmium for reduction of nitrate this has to be stated on the package. If there is no warning on the package they likely use zinc for nitrate reduction and it is zinc that forms the particles. Click to expand... Thanks.
