Pond Logic® Blue Sapphire™ Pond Shade safely shades your water garden while protecting your fish from penetrating UV sunlight. Pond Logic® Blue Sapphire™ Pond Shade is a non-toxic coloring that will turn your pond water a beautiful sapphire blue that will not harm or discolor ornamental aquatic plants or fish. Water treated with Pond Logic® Blue Sapphire™ Pond Shade will not harm lawns, gardens, or landscape plants.Pond Logic® Blue Sapphire™ Pond Shade Dosage Rate:Use ½ ounce of Pond Logic® Blue Sapphire™ Pond Shade for every 500 gallons of pond water. More product can be added if additional color is desired. Each Pond Logic® Blue Sapphire™ Pond Shade bottle contains 16 ounces of pond shade and includes a measuring reservoir with 1/2 and 1 ounce markings. How To Apply Pond Logic® Blue Sapphire™ Pond Shade:Pour Pond Logic® Blue Sapphire™ Pond Shade directly into the pond water. Your aeration system and/or pumps will circulate the product throughout the water column. When To Apply Pond Logic® Blue Sapphire™ Pond Shade:Pond Logic® Blue Sapphire™ Pond Shade can be used year round and is not temperature sensitive. After the initial dose reapply Pond Logic® Blue Sapphire™ Pond Shade as needed to maintain desired color. If you accidentally add more Pond Logic® Blue Sapphire™ Pond Shade than intended perform a 25% water change to lighten the color. Pond Logic® Blue Sapphire™ Pond Shade Restrictions and Precautions:As it is NOT a chemical, Pond Logic® Blue Sapphire™ Pond Shade has no state or water use restrictions.Documentation:View the Pond Logic® Blue Sapphire™ Pond Shade MSDS InformationView the Pond Logic® Blue Sapphire™ Pond Shade Product LabelPond Logic® Pond Shade is also available in Black Pearl™ Protects your fish from penetrating UV light Provides a beautiful sapphire blue shade Treats 1,