Bright Dyes Industrial Blue, formulated with Acid Blue 9, is often used in fountains, ponds and streams for decorative effect. Acid Blue 9 is not recommended for use in or around potable water sources. Blue dye is for visual detection only and cannot be seen under ultraviolet light or detected by fluorometry.
Bright Dyes Industrial Red Fluorescent Dye is composed of Rhodamine B. Industrial dye is not certified for use in potable water and should not be used inside drinking water systems, near water intakes or where down-stream impingement of a drinking water system might occur. Red Water Tracer Dye should also be avoided where any aquatic ecosystem might be chronically exposed to detectable amounts.