RTN/STN X 500ml RTN / STN-X the solution against tissue necrosis on corals RTN/STN-X is a protective treatment for corals and is effective against tissue necrosis in corals, both the fast form (RTN, Rapid Tissue Necrosis) and the slow form (STN, Slow Tissue Necrosis). RTN/STN-X disrupts the microorganism development involved and at the same time strengthens...