Use of commercial bleachers is an uncomplicated method for extraction of rotifer’ jaws. Commercial bleachers were used for rotifers’ jaws extraction, 170 specimens of 23 species were used for adjustment of the method. Bleaching agent «Belizna» was tested. The aim was to determine such «Belizna»/water proportions, which not result in destruction of lloricate and illoricate rotifers’ jaws. Proportions 2/1 and 1/1 appeared to be optimal for most rotifers, and 3/1 proportion was suitable for large illoricate and many loricate rotifers.