Abstract: Embodiments herein disclose a system for visually displaying information related to a fluid level in an above-ground storage tank, which may be enhanced to visually indicate the performance of selected tank sub-system(s). The system includes the above-ground storage tank adapted to store fluid, having a first sensor located in the tank. The sensor is in communication with a fluid indicator that provides a visual indication of a tank-level via a plurality of lights arranged proximate to an exterior surface of the above-ground storage tank. The plurality of lights are arranged so that when a first proportion of a light is electrified and illuminate, the illumination visually indicates a first detected fluid level.