Banish those pesky algae and bio-film from your pool effortlessly with Black Algae Killer. This powerful chlorine-based formula, packed with 90% chlorine elements, is your go-to for maintaining crystal-clear waters in the Caribbean heat. Its fine 3-15 size mesh granules ensure thorough cleaning without harming your aquatic friends. Dive into a cleaner, healthier pool experience with this top-notch water treatment solution.