The Poly Bio Marine Poly Filter Pad is an advanced filtration media designed for both freshwater and saltwater aquariums. This innovative pad utilizes a special patented material bonded to a synthetic matrix, making it highly effective in absorbing and adsorbing contaminants such as medications that may harm fish after their intended purpose has been served. The POLY-FILTER is engineered to be impervious to saltwater while also being organic-loving, allowing it to remove toxins without affecting beneficial biological processes in the aquarium environment. This product is ideal for reef tank owners looking to maintain pristine water conditions and ensure the health of delicate marine organisms by effectively managing chemical contaminants.