Green Water algae is caused by a single cell algae that is suspended in the water. Together these cells create a 'pea soup' or green water effect. As many as five million algae cells per millimetre of pond water can overwhelm an untreated pond, which causes a lack of light and oxygen to plants and of course fish. Fish can become stressed in these conditions and prone to diseases.
It is caused by excess nutrients in the water and sunlight, if these two elements are too high then algae can quickly spread. It can be avoided by not overfeeding fish, removing uneaten food and plant debris as often as necessary, and planting trees and plants to create shade. These tiny organisms can pass through even the finest filter media, so a water treatment is the best idea. We have a wide selection of fast acting, top quality treatments that will rid your pond of this unsightly nuisance.
Most of our treatments are safe for fish and plants, but check the description of the item before you buy, as some are just for water features without fish, so unsafe for animals or plants.