Contains one (1) API AQUA ESSENTIAL 8oz, (1) API STRESS COAT 8oz, API STRESS ZYME 8oz, (1) API 5 IN 1 TEST STRIPS 4ct (1) ALGAE PAD for glass aquariums. Use API AQUA ESSENTIAL to dechlorinate, remove ammonia, nitrite and nitrates. Use API STRESS COAT to make tap water safe and protect fish with a dual-action formula. Use API STRESS ZYME to add beneficial bacteria for a clean, low maintenance aquarium. Use API ALGE PAD to keep glass aquariums clean with hand held control to clean the nooks and crannies. Use API 5in1 TEST STRIPS to prevent invisible water problems that can be harmful to fish and cause fish loss. Monitors pH, nitrite, nitrate and carbonate/general water hardness in freshwater or saltwater aquariums