Aquatic invertebrates may be used as indicators of water quality so identifying them in a water sample is an essential step. Aquatic invertebrates have exoskeletons that are easily damaged if picked up by tweezers so we developed a larger scale eye dropper that can pick them up without damage. We call these "sucker uppers".
They are made from 5 ml pipet bulbs and 3/8 polycarbonate tubes. |