API Pond Algaefix Liquid Algaecide 64 oz is a API-branded product in the ownkoi catalog. Liquid algaecide from API for ornamental ponds. 64-ounce bottle rated by the manufacturer for treating up to 19,200 gallons. Specifications and pricing reflect the manufacturer-published or retailer-published data at the most recent catalog refresh. Verify the live listing on the source retailer page before purchase.