Simple to understand and apply, Aqueon Water Care products help maintain the healthiest environment for your aquatic pets. Water quality is essential to maintaining a healthy aquarium. Tap water contains chlorine and other impurities that can harm fish, plants and other aquatic organisms. Aquatic plants require mineral nutrients, newly set up aquariums can experience temporary cloudiness and unsightly algae may appear in spite of our best efforts to keep it in check. Aqueon water and plant care products are designed to provide effective solutions for aquarium setup and maintenance.