Green water algae makes ponds look unsightly turning the pond water into �Pea Soup � obstructing the viewing of fish The algae also cuts out light to submerged aquatic plants and robs the plants of essential nutrients Large algal blooms also create water quality problems causing rapid changes in pH Green Away is a non-algicide �Plant Friendly � pond treatment that clears suspended green water algae Green Away does not damage any other pond plants and so can be used to help establish a �natural balance � to keep algae away 250ml treats 11 365 litres (2500 gallons)