As an educator, it is helpful to consider how this process is used in everyday life. Dilutions are made in multiple settings and for a variety of purposes. In medicine, prescription drugs may be administered in multiple concentrations (doses) which must be correctly diluted from the original stock concentration. Household cleaning, pool, and aquarium chemicals often come in concentrated containers that must be mixed with water to the appropriate strength for the task. In an aquarium, the water chemistry must have the appropriate pH, hardness, ammonia, and nitrate concentrations for the species inside. In a swimming pool, it is important to balance chlorine levels to prohibit algal and bacterial growth without harming the people swimming. In a household, varying dilutions of products are appropriate for different levels of cleaning. One common misconception is that a more concentrated solution will be better or faster. However, if a chemical is used at too high of a concentration, it could be hazardous to human health, harmful to the object being cleaned (for example, dilute bleach will whiten, but pure bleach will burn holes through the fabric), or detrimental to the organisms in an aquarium.