Frog Bam's unique formula will keep algae from forming for 90 days! Combined with the mineral effectiveness of the Pool Frog Mineral System and a low 0.5 - 1 ppm of chlorine, your pool will never see algae again! Frog Bam contains a low 3% copper complex (considerably lower than any other algaestats) that is specially formulated to stay in suspension for the full 90 days. This unique formula has no staining potential like other copper additives. Frog Bam was designed to be dispensed through the Pool Frog Mineral System for even distribution throughout the pool over the 90 minute time period. King Technology, the maker of the product, guarantees Frog Bam for a period of 90 days to eliminate algae from inground or above-ground swimming pools when used properly with the Pool Frog Mineral System.