Selecting antifouling paint for the bottom side of your vessel minimizes marine organisms such as zebra mussels, acorn barnacles, weeds and algae, and slime from binding to the hull. Hull bottom paint is updated frequently some formulas work better for different types of water. Previous iterations are formulated with copper which can harmful to the marine ecosystem. Advancements in antifouling paint are now formulated without any toxic metals. Maintaining your bottom paint returns better performance with less drag and fuel consumption.