Boyd's 'Chemiclean' removes cyanobacteria and oxidizes organic sediment. It is safe for freshwater and marine environments and will not harm nitrifying bacteria in your tank.
When treating with Chemiclean, you MUST add a source of oxygenation for your tank in the form of heavy aeration or an airstone. After 48 hours, it is recommended to perform a 20% water change and then you can remove the added aeration.
