Ultra life “Blue-Green Slime Stain Remover” is a revolutionary time tested product, that will effectively and safely remove Blue Green Slime Stains from your freshwater aquarium. Ultra Life Blue Green Slime Stain Remover contains natural cellular matter, select biological accelerators and special supplements proven effective in removing Blue Green Slime Stains while being safe for desirable macro-algae, nitrifying bacteria and fish. Ultra Life BGSSR will accelerate the solubilization and biological digestion of organic solids. In the process, the oxygen uptake rate in your aquarium will increase as a result of this increased biological activity. It is very important that your aquarium is able to support this increased oxygen demand along with your aquatic life's need for oxygen. Therefore we recommend increasing your O2 levels by the addition of air-stones prior to and during treatment.