Description
Jet Black is an environmentally pleasing natural blue water dye without producing an artificial appearance. True blue helps to block out sunlight to reduce the growth of weeds and algae in ponds, parks, and golf courses. one packet covers a pond 50′ x 100′ and is very simple and cost-effective for weed and algae control. (Spring Special) Box of 6 packets shipped free to most parts of Ontario in 2015.