COCO CARB activated carbon from coconut shell. COCO CARB is a high quality activated carbon manufactured from coconut shell. Compared to traditional activated carbon the number of micropores is greater and the effective surface area larger (1 g ≈ 1000 m2). This structure in COCO CARB ensures exceptional adsorptive properties, useful for cleansing water of the smallest particles that affect colour and smell. It reduces the concentration of many toxic compounds, including numerous medications, pesticides, organochlorine compounds and fixes the heavy metal ions. It helps to create and maintain optimal water quality in freshwater and marine aquaria containing delicate and demanding fish, especially wild-caught specimens, which may not tolerate chemicals typically found in tap water.