This 0.71 ounce (20g) UltraLife Red Slime Stain Remover eliminates red, black as well as blue-green cyanobacteria stains from any marine aquarium. This is possible though the natural cellular matter, selected biological accelerator and the carefully chosen supplements combined in this formula. It is suggested to raise your o2 levels by the addition of air stone before and during use, as it may affect pH and oxygen levels. Treats 300 gallons of water.

No need to turn off or remove UV Sterilizer, Ozonizer, Protein Skimmer, and Carbon Filtration.