Blagdon 250ml Green Away Pond TreatmentGreen Away is a naturally safe treatment for green water problems in a pond environment. It removes the suspended algae (which cause the green water) by clumping them together so that they either drop out of suspension or are trapped in the mechanical filtration media in your pond filter. In the warmer months algae cells can build up in the water and cause an opaque green tinge which ruins the look of your pond and stops oxygen and light from