This pool algae killer uses a patented non-foaming formula

shake well before using

Crystal Blue uses a proprietary formula to enhance your pond or lake with beautiful royal blue color all year long

narrow-profile hook and blade are matched by hand to ensure precise

24% fat and 24% all-milk proteins to support optimal digestibility and performance

Durvet No-Bite™ IGR Flea and Tick Spray Cord & Accessories This pool algae killer usesFlea and tick spray for carpets & furniture that contains a unique combination of ingredients, including NYLAR Insect Growth Regulator, that kills adult, preadult fleas (larva) and flea eggs. One treatment with this spray gives continuous flea protection for 210 days.