A chemically treated indicator, commonly made of paper or plastic, designed to quickly assess the water quality in an aquatic environment. When immersed in the water, the pads on this indicator react with specific chemicals, displaying results as color changes that are then compared to a reference chart, indicating the levels of various parameters such as pH, ammonia, nitrite, and nitrate.
Regular use of these indicators is crucial for maintaining a healthy aquatic ecosystem. By monitoring key water parameters, potential imbalances or harmful conditions can be identified early, allowing for timely corrective action. This prevents stress and disease among aquatic inhabitants, contributing to their overall well-being and longevity, and mimics optimal natural conditions. These indicators offer an accessible and relatively inexpensive method for aquarium enthusiasts to ensure a stable and thriving environment.