Improve your pond's water quality and combat algae, all while displaying your beautiful plants with these handy floating planters. Using the power of barley straw to thoroughly filter your pond's water, these planters are a great showcase for your pond's amazing floating plants. Barley treatment lasts for six months of continuous water clarifying. Planters include a Styrofoam ring for stability and floatation. Protects roots from hungry koi. Safe for all fish and plants.Treats 1000 to 1500 gallons.
Read more about algae control in ornamental ponds and using algaecides here.