Diatomaceous earth (DE) is a natural product made up of fossilized remains of tiny, aquatic organisms called diatoms. Diatoms are a major group of algae and are among the most common types of phytoplankton. Algae's included organisms range from unicellular genera, such as Chlorella and the diatoms, to multicellular forms, such as giant kelp, a large brown alga which may grow up to 50m in length. Most are aquatic. Diatomaceous earth is positively charged, and bad bacteria and fungi like candida are negatively charged. It is also very very sharp on a very small scale.