BASF Black Onyx Lake Pond Colorant (gal) is a highly concentrate colorant which assists to create the unique and natural look of black water lakes and ponds favored in golf course and resort locations. Black Onyx Lake Pond Colorant will transform pale and off colored water to a decorative, mirror like black color. Black Onyx Lake Pond Colorant may be used for irrigation but not for potable water. Fish, animals, and waterfowl are not harmed or discolored by normal use of Black Onyx.
Application: lake and pond dark colorant.
Use on: Water features, water gardens, swimming sports, golf course, resorts, and other listed areas.