API MARINE ALGAEFIX algae control effectively controls these types of saltwater algae: Green algae (Cladophora), Red Slime (Oscillatoria & Spirulina major), Brown Algae (Cyclotella), in saltwater aquariums containing live corals, invertebrates, and fish.

API MARINE ALGAEFIX algae control does not discolour water or cause foaming and does not contain copper.