These are diagnostic tools employed to measure the concentration of a toxic nitrogen compound in aquatic environments. The devices typically consist of chemically treated paper strips that react with the water sample, producing a color change indicative of the level of the compound present. For example, a strip dipped into aquarium water may turn yellow for a low concentration and deepen to green or blue as the concentration increases.
Regular monitoring of this compound’s concentration is critical for maintaining a healthy aquatic ecosystem. Elevated levels can be detrimental, even fatal, to fish and other aquatic life. The introduction of this simple and affordable testing method has revolutionized the hobby, allowing enthusiasts to effectively manage water quality, preventing illness and fostering thriving environments.
