INSTRUCTIONS: First day, add the contents of 2 packets per 10 gallons of water. Second through fifth day, add 1 packet per 10 gallons of water. Repeat this 5 day treatment only once if needed. Important: Treat for 5 days even if visible signs disappear. May be used concurrently with Coppersafe®, Maracide®, Maracyn® or Maroxy®. Refer to package insert for proper combination use.