GreenCleanFX is ideal for green water algae and deeper water as it sinks to the bottom. It will not affect pH levels and continues to work up to 48 hours after application. GreenCleanFX is an activated peroxide commercial strength liquid algaecide, which means no harsh chemical in your customer's pond. GreenCleanFX meets the National Organic Program Standards for sustainability, is EPA registered, and is made in the USA. The product is available in 16 fl. oz. and 32 fl. oz Tip ‘n’ Pour containers with 1 oz. free and 1 gallon size.