👉 Parameciums are a type of unicellular eukaryotic organism that belong to the phylum Nematoda. They are commonly found in aquatic environments, such as oceans and freshwater lakes, where they can be found in symbiotic relationships with other organisms like bacteria or fungi. Parameciums have two primary types: the amorphous paramecium (also known as a "dwarf") and the rigid paramecium. The amorphous parame