Tetra Pond Algae Control Pond Block, 1-Ounce, 4-Count 781552044260 Brand: Dyson

Brand: Dyson

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Tetra Pond Algae Control Pond Block, 1-Ounce, 4-Count 781552044260 Brand: DysonHelps control algae growth in ornamental fish ponds Not recommended for use in ponds with live plants Each block treats 250 gallons Carefully follow dosage instructions Not for use in non ornamental ponds For 50 year, fishkeeping enthusiasts have looked to the Tetra name for products and solutions that add ease and beauty to their home. Whether you're an experienced hobbyist or just starting out, Tetra has everything you needfrom a large variety of