Water Sprite. Water sprites are said to be able to breathe water or air, and in some cases, can fly. They are mostly harmless unless threatened. These creatures exist in mythology of various groups. Ancient Greeks knew water nymphs in several types such as naiads (or nyads), which guarded the fresh water bodies for the gods, while Slavic mythology knows them as vilas.
Yellow mold is a fungus that normally grows in dark and damp places. Several species of this mold exist, with some belonging in genera that are toxic or widely known to destroy wood. It is usually obvious when a building has a yellow mold infestation because the mold's color is often bright and difficult to miss.
Cladosporium presents as a powdery, slow growing mold that ranges from dark green, grey, brown or black in color. It differs from other more toxic black molds because it is dry in texture, as opposed to having the wet or slimy appearance of some of the more toxic molds such as Stachybotrys and Memnoniella.