Dye Concentrate

F Fluorescent yellow/green dye (fluorescein) works best in silt-filled waters. Use an ultraviolet lamp (order separately below) to trace fluorescent red or yellow/green dyes where normal visual detection is difficult Won’t harm the environment—nontoxic and biodegradable Easy-to-use color in rapidly diffusing dye identifies dispersion patterns, flow rates, seepage and more Noncarcinogenic fluorescent red dye is ideal for yellowed or heavily algaed water Brighten murky ponds with blue dye Minimum detectable concentration is 1 ppm