The impact of heavy metals. cadmium (Cd2+). zinc (Zn2+) and nickel (Ni2+) on planktonic cells and biofilm of Rhodotorula mucilaginosa and Saccharomyces boulardii was examined. The metal tolerance testing was performed by MBECTM-HTP assay. https://chefesquipmenters.shop/product-category/ice-buckets/