All new natural algae based slime protectant no synthetic PVP or ineffective Aloe. Revolutionary immune boosters promote health & well being, especially during stressful transport and cleaning. Formaldehyde Free no harsh chemicals like SHS. Makes the most stressful tap water safe. Removes EPA maximum chlorine up to 4.5 ppm. Removes EPA maximum copper up to 1.3 ppm. Patented immunostimulant .Higher resistance to infection, Virus, bacteria, fungi, and parasites. Stimulates tissue growth. Helps wounds heal.